30745764 has 96 divisors (see below), whose sum is σ = 92610560. Its totient is φ = 8639136.

The previous prime is 30745753. The next prime is 30745787. The reversal of 30745764 is 46754703.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50349 + ... + 50955.

Almost surely, 2^30745764 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 30745764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46305280).

30745764 is an abundant number, since it is smaller than the sum of its proper divisors (61864796).

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

30745764 is a wasteful number, since it uses less digits than its factorization.

30745764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 30745764 is about 5544.8862927927. The cubic root of 30745764 is about 313.2769412120.

The spelling of 30745764 in words is "thirty million, seven hundred forty-five thousand, seven hundred sixty-four".