30664040 has 32 divisors (see below), whose sum is σ = 75267360. Its totient is φ = 11150400.

The previous prime is 30664003. The next prime is 30664063. The reversal of 30664040 is 4046603.

It is a junction number, because it is equal to n+sod(n) for n = 30663997 and 30664015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34406 + ... + 35285.

It is an arithmetic number, because the mean of its divisors is an integer number (2352105).

Almost surely, 2^30664040 is an apocalyptic number.

It is an amenable number.

30664040 is an abundant number, since it is smaller than the sum of its proper divisors (44603320).

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

30664040 is a wasteful number, since it uses less digits than its factorization.

30664040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69713 (or 69709 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 30664040 is about 5537.5120767363. The cubic root of 30664040 is about 312.9991255713. Note that the first 3 decimals are identical.

It can be divided in two parts, 306 and 64040, that added together give a palindrome (64346).

The spelling of 30664040 in words is "thirty million, six hundred sixty-four thousand, forty".