40623420 has 24 divisors (see below), whose sum is σ = 113745744. Its totient is φ = 10832896.

The previous prime is 40623419. The next prime is 40623467. The reversal of 40623420 is 2432604.

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, 338469 + ... + 338588.

It is an arithmetic number, because the mean of its divisors is an integer number (4739406).

Almost surely, 2^40623420 is an apocalyptic number.

It is an amenable number.

40623420 is an abundant number, since it is smaller than the sum of its proper divisors (73122324).

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

40623420 is a wasteful number, since it uses less digits than its factorization.

40623420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677069 (or 677067 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40623420 is about 6373.6504453884. The cubic root of 40623420 is about 343.7627600773.

The spelling of 40623420 in words is "forty million, six hundred twenty-three thousand, four hundred twenty".