252112350440 has 16 divisors (see below), whose sum is σ = 567252788580. Its totient is φ = 100844940160.

The previous prime is 252112350409. The next prime is 252112350467. The reversal of 252112350440 is 44053211252.

It can be written as a sum of positive squares in 2 ways, for example, as 244631138404 + 7481212036 = 494602^2 + 86494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3151404341 + ... + 3151404420.

Almost surely, 2^252112350440 is an apocalyptic number.

252112350440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252112350440 is an abundant number, since it is smaller than the sum of its proper divisors (315140438140).

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

252112350440 is a wasteful number, since it uses less digits than its factorization.

252112350440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302808772 (or 6302808768 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 252112350440 its reverse (44053211252), we get a palindrome (296165561692).

The spelling of 252112350440 in words is "two hundred fifty-two billion, one hundred twelve million, three hundred fifty thousand, four hundred forty".