74654664 has 64 divisors (see below), whose sum is σ = 215040000. Its totient is φ = 21155904.

The previous prime is 74654663. The next prime is 74654669. The reversal of 74654664 is 46645647.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (74654663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19587 + ... + 23085.

It is an arithmetic number, because the mean of its divisors is an integer number (3360000).

Almost surely, 2^74654664 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 74654664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107520000).

74654664 is an abundant number, since it is smaller than the sum of its proper divisors (140385336).

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

74654664 is a wasteful number, since it uses less digits than its factorization.

74654664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642 (or 3638 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 74654664 is about 8640.2930505857. The cubic root of 74654664 is about 421.0680751945.

The spelling of 74654664 in words is "seventy-four million, six hundred fifty-four thousand, six hundred sixty-four".