331644474 has 24 divisors (see below), whose sum is σ = 821215200. Its totient is φ = 94755528.

The previous prime is 331644473. The next prime is 331644553. The reversal of 331644474 is 474446133.

331644474 is a `hidden beast` number, since 3 + 3 + 1 + 644 + 4 + 7 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (331644473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1315924 + ... + 1316175.

It is an arithmetic number, because the mean of its divisors is an integer number (34217300).

Almost surely, 2^331644474 is an apocalyptic number.

331644474 is an abundant number, since it is smaller than the sum of its proper divisors (489570726).

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

331644474 is a wasteful number, since it uses less digits than its factorization.

331644474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632114 (or 2632111 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 331644474 is about 18211.1085329806. The cubic root of 331644474 is about 692.1883014688.

The spelling of 331644474 in words is "three hundred thirty-one million, six hundred forty-four thousand, four hundred seventy-four".