331470428 has 24 divisors (see below), whose sum is σ = 612402000. Its totient is φ = 156549888.

The previous prime is 331470389. The next prime is 331470431. The reversal of 331470428 is 824074133.

It is a junction number, because it is equal to n+sod(n) for n = 331470394 and 331470403.

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, 20276 + ... + 32772.

It is an arithmetic number, because the mean of its divisors is an integer number (25516750).

Almost surely, 2^331470428 is an apocalyptic number.

331470428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

331470428 is a deficient number, since it is larger than the sum of its proper divisors (280931572).

331470428 is a wasteful number, since it uses less digits than its factorization.

331470428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12869 (or 12867 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 331470428 is about 18206.3293389964. The cubic root of 331470428 is about 692.0671941835.

The spelling of 331470428 in words is "three hundred thirty-one million, four hundred seventy thousand, four hundred twenty-eight".