74652420 has 48 divisors (see below), whose sum is σ = 209901888. Its totient is φ = 19824000.

The previous prime is 74652407. The next prime is 74652469. The reversal of 74652420 is 2425647.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 12582 + ... + 17538.

It is an arithmetic number, because the mean of its divisors is an integer number (4372956).

Almost surely, 2^74652420 is an apocalyptic number.

It is an amenable number.

74652420 is an abundant number, since it is smaller than the sum of its proper divisors (135249468).

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

74652420 is a wasteful number, since it uses less digits than its factorization.

74652420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220 (or 5218 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 74652420 is about 8640.1631929032. The cubic root of 74652420 is about 421.0638562742.

The spelling of 74652420 in words is "seventy-four million, six hundred fifty-two thousand, four hundred twenty".