252304033640 has 32 divisors (see below), whose sum is σ = 571443586560. Its totient is φ = 100253256000.

The previous prime is 252304033637. The next prime is 252304033651. The reversal of 252304033640 is 46330403252.

252304033640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 252304033597 and 252304033606.

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, 20880056 + ... + 20892135.

It is an arithmetic number, because the mean of its divisors is an integer number (17857612080).

Almost surely, 2^252304033640 is an apocalyptic number.

252304033640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252304033640 is an abundant number, since it is smaller than the sum of its proper divisors (319139552920).

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

252304033640 is a wasteful number, since it uses less digits than its factorization.

252304033640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41772353 (or 41772349 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 252304033640 its reverse (46330403252), we get a palindrome (298634436892).

The spelling of 252304033640 in words is "two hundred fifty-two billion, three hundred four million, thirty-three thousand, six hundred forty".