74087420 has 24 divisors (see below), whose sum is σ = 169728048. Its totient is φ = 26940800.

The previous prime is 74087401. The next prime is 74087437. The reversal of 74087420 is 2478047.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168161 + ... + 168600.

It is an arithmetic number, because the mean of its divisors is an integer number (7072002).

Almost surely, 2^74087420 is an apocalyptic number.

It is an amenable number.

74087420 is an abundant number, since it is smaller than the sum of its proper divisors (95640628).

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

74087420 is a wasteful number, since it uses less digits than its factorization.

74087420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336781 (or 336779 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 74087420 is about 8607.4049515519. The cubic root of 74087420 is about 419.9989040032.

The spelling of 74087420 in words is "seventy-four million, eighty-seven thousand, four hundred twenty".