30664700 has 72 divisors (see below), whose sum is σ = 73943184. Its totient is φ = 10944000.

The previous prime is 30664693. The next prime is 30664709. The reversal of 30664700 is 746603.

It is a self number, because there is not a number n which added to its sum of digits gives 30664700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30664709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66872 + ... + 67328.

Almost surely, 2^30664700 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 30664700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36971592).

30664700 is an abundant number, since it is smaller than the sum of its proper divisors (43278484).

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

30664700 is a wasteful number, since it uses less digits than its factorization.

30664700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 30664700 is about 5537.5716699651. The cubic root of 30664700 is about 313.0013711760.

The spelling of 30664700 in words is "thirty million, six hundred sixty-four thousand, seven hundred".