31632028 has 12 divisors (see below), whose sum is σ = 57141952. Its totient is φ = 15305760.

The previous prime is 31632023. The next prime is 31632031. The reversal of 31632028 is 82023613.

It is a junction number, because it is equal to n+sod(n) for n = 31631993 and 31632011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31632023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 127425 + ... + 127672.

Almost surely, 2^31632028 is an apocalyptic number.

It is an amenable number.

31632028 is a deficient number, since it is larger than the sum of its proper divisors (25509924).

31632028 is a wasteful number, since it uses less digits than its factorization.

31632028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255132 (or 255130 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 31632028 is about 5624.2357703069. The cubic root of 31632028 is about 316.2586010044.

The spelling of 31632028 in words is "thirty-one million, six hundred thirty-two thousand, twenty-eight".