74542464 has 64 divisors (see below), whose sum is σ = 220014000. Its totient is φ = 24846336.

The previous prime is 74542409. The next prime is 74542493. The reversal of 74542464 is 46424547.

74542464 is a `hidden beast` number, since 74 + 542 + 46 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 7329 + ... + 14240.

Almost surely, 2^74542464 is an apocalyptic number.

It is an amenable number.

74542464 is an abundant number, since it is smaller than the sum of its proper divisors (145471536).

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

74542464 is a wasteful number, since it uses less digits than its factorization.

74542464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21592 (or 21574 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 74542464 is about 8633.7977738652. The cubic root of 74542464 is about 420.8570255284.

The spelling of 74542464 in words is "seventy-four million, five hundred forty-two thousand, four hundred sixty-four".