305866972 has 12 divisors (see below), whose sum is σ = 558539856. Its totient is φ = 146284160.

The previous prime is 305866961. The next prime is 305867021. The reversal of 305866972 is 279668503.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662229 + ... + 1662412.

It is an arithmetic number, because the mean of its divisors is an integer number (46544988).

Almost surely, 2^305866972 is an apocalyptic number.

It is an amenable number.

305866972 is a deficient number, since it is larger than the sum of its proper divisors (252672884).

305866972 is a wasteful number, since it uses less digits than its factorization.

305866972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324668 (or 3324666 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 305866972 is about 17489.0529188976. The cubic root of 305866972 is about 673.7687454899.

The spelling of 305866972 in words is "three hundred five million, eight hundred sixty-six thousand, nine hundred seventy-two".