305761972 has 12 divisors (see below), whose sum is σ = 535862656. Its totient is φ = 152658360.

The previous prime is 305761961. The next prime is 305761979. The reversal of 305761972 is 279167503.

305761972 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305761979) 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, 52548 + ... + 58075.

Almost surely, 2^305761972 is an apocalyptic number.

It is an amenable number.

305761972 is a deficient number, since it is larger than the sum of its proper divisors (230100684).

305761972 is a wasteful number, since it uses less digits than its factorization.

305761972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111318 (or 111316 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 305761972 is about 17486.0507834102. The cubic root of 305761972 is about 673.6916380961.

The spelling of 305761972 in words is "three hundred five million, seven hundred sixty-one thousand, nine hundred seventy-two".