531662994 has 32 divisors (see below), whose sum is σ = 1183299840. Its totient is φ = 176947056.

The previous prime is 531662993. The next prime is 531663029. The reversal of 531662994 is 499266135.

531662994 is a `hidden beast` number, since 5 + 3 + 16 + 629 + 9 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (531662993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29287 + ... + 43829.

It is an arithmetic number, because the mean of its divisors is an integer number (36978120).

Almost surely, 2^531662994 is an apocalyptic number.

531662994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

531662994 is an abundant number, since it is smaller than the sum of its proper divisors (651636846).

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

531662994 is a wasteful number, since it uses less digits than its factorization.

531662994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15231 (or 15225 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 531662994 is about 23057.8185004566. The cubic root of 531662994 is about 810.1127689360.

The spelling of 531662994 in words is "five hundred thirty-one million, six hundred sixty-two thousand, nine hundred ninety-four".