1229425344 has 448 divisors, whose sum is σ = 4410577920. Its totient is φ = 328458240.

The previous prime is 1229425331. The next prime is 1229425357. The reversal of 1229425344 is 4435249221.

1229425344 = 237³ + 238³ + ... + 299³.

It is a happy number.

1229425344 is a `hidden beast` number, since 1 + 2 + 294 + 25 + 344 = 666.

It is an interprime number because it is at equal distance from previous prime (1229425331) and next prime (1229425357).

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×1229425344² = 3022973352939036672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1229425299 and 1229425308.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18349599 + ... + 18349665.

It is an arithmetic number, because the mean of its divisors is an integer number (9845040).

Almost surely, 2^1229425344 is an apocalyptic number.

1229425344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229425344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2205288960).

1229425344 is an abundant number, since it is smaller than the sum of its proper divisors (3181152576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229425344 is a wasteful number, since it uses less digits than its factorization.

1229425344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 157 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1229425344 is about 35063.1622076504. The cubic root of 1229425344 is about 1071.2743845781.

The spelling of 1229425344 in words is "one billion, two hundred twenty-nine million, four hundred twenty-five thousand, three hundred forty-four".