523389132 has 72 divisors (see below), whose sum is σ = 1600968096. Its totient is φ = 140742144.

The previous prime is 523389107. The next prime is 523389137. The reversal of 523389132 is 231983325.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (523389137) 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, 56803 + ... + 65370.

It is an arithmetic number, because the mean of its divisors is an integer number (22235668).

Almost surely, 2^523389132 is an apocalyptic number.

It is an amenable number.

523389132 is an abundant number, since it is smaller than the sum of its proper divisors (1077578964).

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

523389132 is a wasteful number, since it uses less digits than its factorization.

523389132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122207 (or 122202 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 523389132 is about 22877.6994472783. The cubic root of 523389132 is about 805.8883917978. Note that the first 3 decimals are identical.

The spelling of 523389132 in words is "five hundred twenty-three million, three hundred eighty-nine thousand, one hundred thirty-two".