74981420 has 12 divisors (see below), whose sum is σ = 157461024. Its totient is φ = 29992560.

The previous prime is 74981399. The next prime is 74981437. The reversal of 74981420 is 2418947.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874516 + ... + 1874555.

It is an arithmetic number, because the mean of its divisors is an integer number (13121752).

Almost surely, 2^74981420 is an apocalyptic number.

It is an amenable number.

74981420 is an abundant number, since it is smaller than the sum of its proper divisors (82479604).

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

74981420 is a wasteful number, since it uses less digits than its factorization.

74981420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749080 (or 3749078 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 74981420 is about 8659.1812545991. The cubic root of 74981420 is about 421.6815053772.

The spelling of 74981420 in words is "seventy-four million, nine hundred eighty-one thousand, four hundred twenty".