74342664 has 128 divisors (see below), whose sum is σ = 229132800. Its totient is φ = 22144320.

The previous prime is 74342663. The next prime is 74342669. The reversal of 74342664 is 46624347.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74342663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158959 + ... + 159425.

It is an arithmetic number, because the mean of its divisors is an integer number (1790100).

Almost surely, 2^74342664 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 74342664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114566400).

74342664 is an abundant number, since it is smaller than the sum of its proper divisors (154790136).

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

74342664 is a wasteful number, since it uses less digits than its factorization.

74342664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 550 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 74342664 is about 8622.2192038941. The cubic root of 74342664 is about 420.4806741665.

The spelling of 74342664 in words is "seventy-four million, three hundred forty-two thousand, six hundred sixty-four".