74199664 has 80 divisors (see below), whose sum is σ = 180702720. Its totient is φ = 28673280.

The previous prime is 74199659. The next prime is 74199673. The reversal of 74199664 is 46699147.

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 15 ways as a sum of consecutive naturals, for example, 281997 + ... + 282259.

It is an arithmetic number, because the mean of its divisors is an integer number (2258784).

Almost surely, 2^74199664 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 74199664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90351360).

74199664 is an abundant number, since it is smaller than the sum of its proper divisors (106503056).

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

74199664 is a wasteful number, since it uses less digits than its factorization.

74199664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 512 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 74199664 is about 8613.9226836558. The cubic root of 74199664 is about 420.2108993720.

The spelling of 74199664 in words is "seventy-four million, one hundred ninety-nine thousand, six hundred sixty-four".