232504728540 has 72 divisors (see below), whose sum is σ = 757301125392. Its totient is φ = 53143937280.

The previous prime is 232504728503. The next prime is 232504728541. The reversal of 232504728540 is 45827405232.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 232504728492 and 232504728501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232504728541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39538681 + ... + 39544560.

It is an arithmetic number, because the mean of its divisors is an integer number (10518071186).

Almost surely, 2^232504728540 is an apocalyptic number.

232504728540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232504728540 is an abundant number, since it is smaller than the sum of its proper divisors (524796396852).

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

232504728540 is a wasteful number, since it uses less digits than its factorization.

232504728540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79083267 (or 79083258 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 232504728540 in words is "two hundred thirty-two billion, five hundred four million, seven hundred twenty-eight thousand, five hundred forty".