74603664 has 120 divisors (see below), whose sum is σ = 217581312. Its totient is φ = 23846400.

The previous prime is 74603657. The next prime is 74603677. The reversal of 74603664 is 46630647.

It is a super-3 number, since 3×74603664³ (a number of 25 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 493989 + ... + 494139.

Almost surely, 2^74603664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74603664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108790656).

74603664 is an abundant number, since it is smaller than the sum of its proper divisors (142977648).

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

74603664 is a wasteful number, since it uses less digits than its factorization.

74603664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 74603664 is about 8637.3412575862. The cubic root of 74603664 is about 420.9721697609.

The spelling of 74603664 in words is "seventy-four million, six hundred three thousand, six hundred sixty-four".