331406632 has 32 divisors (see below), whose sum is σ = 665942400. Its totient is φ = 154211904.

The previous prime is 331406617. The next prime is 331406681. The reversal of 331406632 is 236604133.

It is a self number, because there is not a number n which added to its sum of digits gives 331406632.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17532 + ... + 31147.

It is an arithmetic number, because the mean of its divisors is an integer number (20810700).

Almost surely, 2^331406632 is an apocalyptic number.

It is an amenable number.

331406632 is an abundant number, since it is smaller than the sum of its proper divisors (334535768).

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

331406632 is a wasteful number, since it uses less digits than its factorization.

331406632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48745 (or 48741 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 331406632 is about 18204.5772266208. The cubic root of 331406632 is about 692.0227920812.

The spelling of 331406632 in words is "three hundred thirty-one million, four hundred six thousand, six hundred thirty-two".