30832240 has 20 divisors (see below), whose sum is σ = 71685144. Its totient is φ = 12332864.

The previous prime is 30832223. The next prime is 30832253. The reversal of 30832240 is 4223803.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192622 + ... + 192781.

Almost surely, 2^30832240 is an apocalyptic number.

It is an amenable number.

30832240 is an abundant number, since it is smaller than the sum of its proper divisors (40852904).

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

30832240 is a wasteful number, since it uses less digits than its factorization.

30832240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385416 (or 385410 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 30832240 is about 5552.6786328762. The cubic root of 30832240 is about 313.5703754294.

The spelling of 30832240 in words is "thirty million, eight hundred thirty-two thousand, two hundred forty".