74045664 has 360 divisors, whose sum is σ = 281563128. Its totient is φ = 18869760.

The previous prime is 74045663. The next prime is 74045743. The reversal of 74045664 is 46654047.

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 (74045663) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1397062 + ... + 1397114.

Almost surely, 2^74045664 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 74045664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140781564).

74045664 is an abundant number, since it is smaller than the sum of its proper divisors (207517464).

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

74045664 is a wasteful number, since it uses less digits than its factorization.

74045664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 74045664 is about 8604.9790237978. The cubic root of 74045664 is about 419.9199847571.

The spelling of 74045664 in words is "seventy-four million, forty-five thousand, six hundred sixty-four".