30402664 has 16 divisors (see below), whose sum is σ = 60358500. Its totient is φ = 14307072.

The previous prime is 30402653. The next prime is 30402683. The reversal of 30402664 is 46620403.

It can be written as a sum of positive squares in 2 ways, for example, as 29484900 + 917764 = 5430^2 + 958^2 .

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, 111639 + ... + 111910.

Almost surely, 2^30402664 is an apocalyptic number.

30402664 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30402664 is a deficient number, since it is larger than the sum of its proper divisors (29955836).

30402664 is a wasteful number, since it uses less digits than its factorization.

30402664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223572 (or 223568 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 30402664 is about 5513.8610791350. The cubic root of 30402664 is about 312.1072664265.

The spelling of 30402664 in words is "thirty million, four hundred two thousand, six hundred sixty-four".