74646684 has 192 divisors, whose sum is σ = 238049280. Its totient is φ = 20015424.

The previous prime is 74646659. The next prime is 74646701. The reversal of 74646684 is 48664647.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

Its product of digits (774144) is a multiple of the sum of its prime factors (108).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1408402 + ... + 1408454.

It is an arithmetic number, because the mean of its divisors is an integer number (1239840).

Almost surely, 2^74646684 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 74646684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119024640).

74646684 is an abundant number, since it is smaller than the sum of its proper divisors (163402596).

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

74646684 is a wasteful number, since it uses less digits than its factorization.

74646684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 88 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 74646684 is about 8639.8312483520. The cubic root of 74646684 is about 421.0530716980.

The spelling of 74646684 in words is "seventy-four million, six hundred forty-six thousand, six hundred eighty-four".