30445764 has 12 divisors (see below), whose sum is σ = 71040144. Its totient is φ = 10148584.

The previous prime is 30445747. The next prime is 30445769. The reversal of 30445764 is 46754403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (30445769) 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, 1268562 + ... + 1268585.

It is an arithmetic number, because the mean of its divisors is an integer number (5920012).

Almost surely, 2^30445764 is an apocalyptic number.

It is an amenable number.

30445764 is an abundant number, since it is smaller than the sum of its proper divisors (40594380).

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

30445764 is a wasteful number, since it uses less digits than its factorization.

30445764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537154 (or 2537152 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 30445764 is about 5517.7680270196. The cubic root of 30445764 is about 312.2546819247.

The spelling of 30445764 in words is "thirty million, four hundred forty-five thousand, seven hundred sixty-four".