1225548324 has 288 divisors, whose sum is σ = 4226826240. Its totient is φ = 289094400.

The previous prime is 1225548319. The next prime is 1225548329. The reversal of 1225548324 is 4238455221.

1225548324 is a `hidden beast` number, since 1 + 2 + 2 + 554 + 83 + 24 = 666.

It is an interprime number because it is at equal distance from previous prime (1225548319) and next prime (1225548329).

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

It is not an unprimeable number, because it can be changed into a prime (1225548329) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2558317 + ... + 2558795.

It is an arithmetic number, because the mean of its divisors is an integer number (14676480).

Almost surely, 2^1225548324 is an apocalyptic number.

1225548324 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 1225548324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2113413120).

1225548324 is an abundant number, since it is smaller than the sum of its proper divisors (3001277916).

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

1225548324 is a wasteful number, since it uses less digits than its factorization.

1225548324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 586 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 1225548324 is about 35007.8323236387. The cubic root of 1225548324 is about 1070.1471029594.

The spelling of 1225548324 in words is "one billion, two hundred twenty-five million, five hundred forty-eight thousand, three hundred twenty-four".