74506680 has 96 divisors (see below), whose sum is σ = 245840400. Its totient is φ = 19565568.

The previous prime is 74506673. The next prime is 74506687. The reversal of 74506680 is 8660547.

It is a happy number.

74506680 is a `hidden beast` number, since 74 + 506 + 6 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (74506673) and next prime (74506687).

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 (74506687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22576 + ... + 25664.

Almost surely, 2^74506680 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 74506680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122920200).

74506680 is an abundant number, since it is smaller than the sum of its proper divisors (171333720).

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

74506680 is a wasteful number, since it uses less digits than its factorization.

74506680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173 (or 3166 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 74506680 is about 8631.7252041524. The cubic root of 74506680 is about 420.7896708178.

The spelling of 74506680 in words is "seventy-four million, five hundred six thousand, six hundred eighty".