30825920 has 28 divisors (see below), whose sum is σ = 73404984. Its totient is φ = 12330240.

The previous prime is 30825917. The next prime is 30825953. The reversal of 30825920 is 2952803.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 47846 + ... + 48485.

Almost surely, 2^30825920 is an apocalyptic number.

It is an amenable number.

30825920 is an abundant number, since it is smaller than the sum of its proper divisors (42579064).

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

30825920 is an equidigital number, since it uses as much as digits as its factorization.

30825920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96348 (or 96338 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 30825920 is about 5552.1095090065. The cubic root of 30825920 is about 313.5489487216.

The spelling of 30825920 in words is "thirty million, eight hundred twenty-five thousand, nine hundred twenty".