305172464 has 20 divisors (see below), whose sum is σ = 616979856. Its totient is φ = 145951872.

The previous prime is 305172451. The next prime is 305172479. The reversal of 305172464 is 464271503.

It is a self number, because there is not a number n which added to its sum of digits gives 305172464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414269 + ... + 415004.

Almost surely, 2^305172464 is an apocalyptic number.

It is an amenable number.

305172464 is an abundant number, since it is smaller than the sum of its proper divisors (311807392).

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

305172464 is a wasteful number, since it uses less digits than its factorization.

305172464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829304 (or 829298 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 305172464 is about 17469.1861287239. The cubic root of 305172464 is about 673.2584011856.

The spelling of 305172464 in words is "three hundred five million, one hundred seventy-two thousand, four hundred sixty-four".