74078664 has 64 divisors (see below), whose sum is σ = 202962240. Its totient is φ = 22344960.

The previous prime is 74078657. The next prime is 74078671. The reversal of 74078664 is 46687047.

It is an interprime number because it is at equal distance from previous prime (74078657) and next prime (74078671).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72622 + ... + 73634.

It is an arithmetic number, because the mean of its divisors is an integer number (3171285).

Almost surely, 2^74078664 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 74078664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101481120).

74078664 is an abundant number, since it is smaller than the sum of its proper divisors (128883576).

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

74078664 is a wasteful number, since it uses less digits than its factorization.

74078664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 74078664 is about 8606.8963047082. The cubic root of 74078664 is about 419.9823575356.

The spelling of 74078664 in words is "seventy-four million, seventy-eight thousand, six hundred sixty-four".