30776072 has 16 divisors (see below), whose sum is σ = 57815100. Its totient is φ = 15358720.

The previous prime is 30776071. The next prime is 30776077. The reversal of 30776072 is 27067703.

It can be written as a sum of positive squares in 2 ways, for example, as 30758116 + 17956 = 5546^2 + 134^2 .

It is not an unprimeable number, because it can be changed into a prime (30776071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1172 + ... + 7932.

Almost surely, 2^30776072 is an apocalyptic number.

It is an amenable number.

30776072 is a deficient number, since it is larger than the sum of its proper divisors (27039028).

30776072 is a wasteful number, since it uses less digits than its factorization.

30776072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336 (or 7332 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 30776072 is about 5547.6185881872. The cubic root of 30776072 is about 313.3798462211.

The spelling of 30776072 in words is "thirty million, seven hundred seventy-six thousand, seventy-two".