30782152 has 24 divisors (see below), whose sum is σ = 59118390. Its totient is φ = 15025920.

The previous prime is 30782131. The next prime is 30782161. The reversal of 30782152 is 25128703.

It can be written as a sum of positive squares in only one way, i.e., 27520516 + 3261636 = 5246^2 + 1806^2 .

It is a super-2 number, since 2×30782152² = 1895081763502208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30782152.

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 5 ways as a sum of consecutive naturals, for example, 13752 + ... + 15832.

Almost surely, 2^30782152 is an apocalyptic number.

It is an amenable number.

30782152 is a deficient number, since it is larger than the sum of its proper divisors (28336238).

30782152 is a wasteful number, since it uses less digits than its factorization.

30782152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30782152 is about 5548.1665440035. The cubic root of 30782152 is about 313.4004815598.

The spelling of 30782152 in words is "thirty million, seven hundred eighty-two thousand, one hundred fifty-two".