331652636 has 24 divisors (see below), whose sum is σ = 678733440. Its totient is φ = 138830832.

The previous prime is 331652623. The next prime is 331652639. The reversal of 331652636 is 636256133.

It is a junction number, because it is equal to n+sod(n) for n = 331652596 and 331652605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331652639) 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, 136526 + ... + 138933.

It is an arithmetic number, because the mean of its divisors is an integer number (28280560).

Almost surely, 2^331652636 is an apocalyptic number.

It is an amenable number.

331652636 is an abundant number, since it is smaller than the sum of its proper divisors (347080804).

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

331652636 is a wasteful number, since it uses less digits than its factorization.

331652636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275513 (or 275511 counting only the distinct ones).

The product of its digits is 58320, while the sum is 35.

The square root of 331652636 is about 18211.3326255933. The cubic root of 331652636 is about 692.1939798332.

The spelling of 331652636 in words is "three hundred thirty-one million, six hundred fifty-two thousand, six hundred thirty-six".