30782272 has 28 divisors (see below), whose sum is σ = 61447680. Its totient is φ = 15299456.

The previous prime is 30782239. The next prime is 30782317. The reversal of 30782272 is 27228703.

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, 10113 + ... + 12799.

It is an arithmetic number, because the mean of its divisors is an integer number (2194560).

Almost surely, 2^30782272 is an apocalyptic number.

30782272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30782272 is a deficient number, since it is larger than the sum of its proper divisors (30665408).

30782272 is a wasteful number, since it uses less digits than its factorization.

30782272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 30782272 is about 5548.1773583764. The cubic root of 30782272 is about 313.4008888089.

The spelling of 30782272 in words is "thirty million, seven hundred eighty-two thousand, two hundred seventy-two".