531350988 has 24 divisors (see below), whose sum is σ = 1416936192. Its totient is φ = 151814544.

The previous prime is 531350987. The next prime is 531350993. The reversal of 531350988 is 889053135.

It is a super-2 number, since 2×531350988² = 564667744897152288, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (531350987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3162720 + ... + 3162887.

It is an arithmetic number, because the mean of its divisors is an integer number (59039008).

Almost surely, 2^531350988 is an apocalyptic number.

It is an amenable number.

531350988 is an abundant number, since it is smaller than the sum of its proper divisors (885585204).

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

531350988 is a wasteful number, since it uses less digits than its factorization.

531350988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325621 (or 6325619 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 531350988 is about 23051.0517764374. The cubic root of 531350988 is about 809.9542665842.

The spelling of 531350988 in words is "five hundred thirty-one million, three hundred fifty thousand, nine hundred eighty-eight".