30664042 has 4 divisors (see below), whose sum is σ = 45996066. Its totient is φ = 15332020.

The previous prime is 30664003. The next prime is 30664063. The reversal of 30664042 is 24046603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16818201 + 13845841 = 4101^2 + 3721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30663998 and 30664016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7666009 + ... + 7666012.

Almost surely, 2^30664042 is an apocalyptic number.

30664042 is a deficient number, since it is larger than the sum of its proper divisors (15332024).

30664042 is a wasteful number, since it uses less digits than its factorization.

30664042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15332023.

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

The square root of 30664042 is about 5537.5122573228. The cubic root of 30664042 is about 312.9991323762. Note that the first 3 decimals are identical.

The spelling of 30664042 in words is "thirty million, six hundred sixty-four thousand, forty-two".