30386664 has 288 divisors, whose sum is σ = 112039200. Its totient is φ = 7620480.

The previous prime is 30386621. The next prime is 30386677. The reversal of 30386664 is 46668303.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1047802 + ... + 1047830.

It is an arithmetic number, because the mean of its divisors is an integer number (389025).

Almost surely, 2^30386664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30386664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56019600).

30386664 is an abundant number, since it is smaller than the sum of its proper divisors (81652536).

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

30386664 is a wasteful number, since it uses less digits than its factorization.

30386664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 30386664 is about 5512.4099992653. The cubic root of 30386664 is about 312.0525059563.

The spelling of 30386664 in words is "thirty million, three hundred eighty-six thousand, six hundred sixty-four".