74481620 has 24 divisors (see below), whose sum is σ = 156897888. Its totient is φ = 29700000.

The previous prime is 74481611. The next prime is 74481637. The reversal of 74481620 is 2618447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995 + ... + 12245.

It is an arithmetic number, because the mean of its divisors is an integer number (6537412).

Almost surely, 2^74481620 is an apocalyptic number.

It is an amenable number.

74481620 is an abundant number, since it is smaller than the sum of its proper divisors (82416268).

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

74481620 is a wasteful number, since it uses less digits than its factorization.

74481620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11591 (or 11589 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 74481620 is about 8630.2734603256. The cubic root of 74481620 is about 420.7424885981.

The spelling of 74481620 in words is "seventy-four million, four hundred eighty-one thousand, six hundred twenty".