331630472 has 32 divisors (see below), whose sum is σ = 629045400. Its totient is φ = 163897344.

The previous prime is 331630469. The next prime is 331630477. The reversal of 331630472 is 274036133.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 329277316 + 2353156 = 18146^2 + 1534^2 .

It is not an unprimeable number, because it can be changed into a prime (331630477) 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, 287048 + ... + 288200.

Almost surely, 2^331630472 is an apocalyptic number.

It is an amenable number.

331630472 is a deficient number, since it is larger than the sum of its proper divisors (297414928).

331630472 is a wasteful number, since it uses less digits than its factorization.

331630472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 331630472 is about 18210.7240932369. The cubic root of 331630472 is about 692.1785599557.

The spelling of 331630472 in words is "three hundred thirty-one million, six hundred thirty thousand, four hundred seventy-two".