1226905344 has 216 divisors, whose sum is σ = 4081459200. Its totient is φ = 347203584.

The previous prime is 1226905327. The next prime is 1226905363. The reversal of 1226905344 is 4435096221.

It is a happy number.

1226905344 is a `hidden beast` number, since 1 + 226 + 90 + 5 + 344 = 666.

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 = 1226905299 and 1226905308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2047957 + ... + 2048555.

Almost surely, 2^1226905344 is an apocalyptic number.

1226905344 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 1226905344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2040729600).

1226905344 is an abundant number, since it is smaller than the sum of its proper divisors (2854553856).

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

1226905344 is a wasteful number, since it uses less digits than its factorization.

1226905344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1226905344 is about 35027.2086241539. The cubic root of 1226905344 is about 1070.5419399270.

The spelling of 1226905344 in words is "one billion, two hundred twenty-six million, nine hundred five thousand, three hundred forty-four".