74023420 has 24 divisors (see below), whose sum is σ = 156038400. Its totient is φ = 29497152.

The previous prime is 74023363. The next prime is 74023441. The reversal of 74023420 is 2432047.

It is a junction number, because it is equal to n+sod(n) for n = 74023391 and 74023400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500 + ... + 12259.

It is an arithmetic number, because the mean of its divisors is an integer number (6501600).

Almost surely, 2^74023420 is an apocalyptic number.

It is an amenable number.

74023420 is an abundant number, since it is smaller than the sum of its proper divisors (82014980).

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

74023420 is a wasteful number, since it uses less digits than its factorization.

74023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14037 (or 14035 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 74023420 is about 8603.6864192043. The cubic root of 74023420 is about 419.8779312677.

Adding to 74023420 its reverse (2432047), we get a palindrome (76455467).

The spelling of 74023420 in words is "seventy-four million, twenty-three thousand, four hundred twenty".