75439464 has 32 divisors (see below), whose sum is σ = 188917920. Its totient is φ = 25103936.

The previous prime is 75439457. The next prime is 75439487. The reversal of 75439464 is 46493457.

It is a super-2 number, since 2×75439464² = 11382225457214592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13927 + ... + 18569.

It is an arithmetic number, because the mean of its divisors is an integer number (5903685).

Almost surely, 2^75439464 is an apocalyptic number.

75439464 is the 4643-rd nonagonal number.

It is an amenable number.

75439464 is an abundant number, since it is smaller than the sum of its proper divisors (113478456).

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

75439464 is a wasteful number, since it uses less digits than its factorization.

75439464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5329 (or 5325 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 75439464 is about 8685.5894445915. The cubic root of 75439464 is about 422.5384141630.

The spelling of 75439464 in words is "seventy-five million, four hundred thirty-nine thousand, four hundred sixty-four".