15223526240 has 48 divisors (see below), whose sum is σ = 38732169168. Its totient is φ = 5620993536.

The previous prime is 15223526209. The next prime is 15223526293. The reversal of 15223526240 is 4262532251.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 15223526197 and 15223526206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3657422 + ... + 3661581.

It is an arithmetic number, because the mean of its divisors is an integer number (806920191).

Almost surely, 2^15223526240 is an apocalyptic number.

15223526240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15223526240 is an abundant number, since it is smaller than the sum of its proper divisors (23508642928).

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

15223526240 is a wasteful number, since it uses less digits than its factorization.

15223526240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319031 (or 7319023 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 15223526240 in words is "fifteen billion, two hundred twenty-three million, five hundred twenty-six thousand, two hundred forty".