331909948 has 24 divisors (see below), whose sum is σ = 602743680. Its totient is φ = 159806640.

The previous prime is 331909933. The next prime is 331909969. The reversal of 331909948 is 849909133.

It is a super-2 number, since 2×331909948² = 220328427162725408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331909898 and 331909907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378 + ... + 25801.

It is an arithmetic number, because the mean of its divisors is an integer number (25114320).

Almost surely, 2^331909948 is an apocalyptic number.

It is an amenable number.

331909948 is a deficient number, since it is larger than the sum of its proper divisors (270833732).

331909948 is a wasteful number, since it uses less digits than its factorization.

331909948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27297 (or 27295 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 331909948 is about 18218.3958679133. The cubic root of 331909948 is about 692.3729459721.

The spelling of 331909948 in words is "three hundred thirty-one million, nine hundred nine thousand, nine hundred forty-eight".