30664620 has 72 divisors (see below), whose sum is σ = 106308384. Its totient is φ = 7008768.

The previous prime is 30664609. The next prime is 30664637. The reversal of 30664620 is 2646603.

30664620 is a `hidden beast` number, since 30 + 6 + 6 + 4 + 620 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10909 + ... + 13428.

Almost surely, 2^30664620 is an apocalyptic number.

30664620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30664620 is an abundant number, since it is smaller than the sum of its proper divisors (75643764).

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

30664620 is a wasteful number, since it uses less digits than its factorization.

30664620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24359 (or 24354 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30664620 is about 5537.5644465776. The cubic root of 30664620 is about 313.0010989832.

The spelling of 30664620 in words is "thirty million, six hundred sixty-four thousand, six hundred twenty".