30664990 has 8 divisors (see below), whose sum is σ = 55197000. Its totient is φ = 12265992.

The previous prime is 30664987. The next prime is 30664999. The reversal of 30664990 is 9946603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30664990² = 1880683223400200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30664999) 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, 1533240 + ... + 1533259.

It is an arithmetic number, because the mean of its divisors is an integer number (6899625).

Almost surely, 2^30664990 is an apocalyptic number.

30664990 is a deficient number, since it is larger than the sum of its proper divisors (24532010).

30664990 is a wasteful number, since it uses less digits than its factorization.

30664990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066506.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 30664990 is about 5537.5978546659. The cubic root of 30664990 is about 313.0023578710.

The spelling of 30664990 in words is "thirty million, six hundred sixty-four thousand, nine hundred ninety".