305028664 has 8 divisors (see below), whose sum is σ = 571928760. Its totient is φ = 152514328.

The previous prime is 305028649. The next prime is 305028667. The reversal of 305028664 is 466820503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305028667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19064284 + ... + 19064299.

It is an arithmetic number, because the mean of its divisors is an integer number (71491095).

Almost surely, 2^305028664 is an apocalyptic number.

It is an amenable number.

305028664 is a deficient number, since it is larger than the sum of its proper divisors (266900096).

305028664 is a wasteful number, since it uses less digits than its factorization.

305028664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38128589 (or 38128585 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 305028664 is about 17465.0698252254. The cubic root of 305028664 is about 673.1526361072.

The spelling of 305028664 in words is "three hundred five million, twenty-eight thousand, six hundred sixty-four".