74894464 has 16 divisors (see below), whose sum is σ = 149204070. Its totient is φ = 37447168.

The previous prime is 74894461. The next prime is 74894467. The reversal of 74894464 is 46449847.

It is an interprime number because it is at equal distance from previous prime (74894461) and next prime (74894467).

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 11022400 = 7992^2 + 3320^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (74894461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 292429 + ... + 292684.

Almost surely, 2^74894464 is an apocalyptic number.

It is an amenable number.

74894464 is a deficient number, since it is larger than the sum of its proper divisors (74309606).

74894464 is an equidigital number, since it uses as much as digits as its factorization.

74894464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585127 (or 585115 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 74894464 is about 8654.1587690543. The cubic root of 74894464 is about 421.5184342205.

The spelling of 74894464 in words is "seventy-four million, eight hundred ninety-four thousand, four hundred sixty-four".