40220578424 has 16 divisors (see below), whose sum is σ = 81214629720. Its totient is φ = 18563343840.

The previous prime is 40220578417. The next prime is 40220578487. The reversal of 40220578424 is 42487502204.

40220578424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40220578424² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 193368062 + ... + 193368269.

Almost surely, 2^40220578424 is an apocalyptic number.

It is an amenable number.

40220578424 is an abundant number, since it is smaller than the sum of its proper divisors (40994051296).

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

40220578424 is a wasteful number, since it uses less digits than its factorization.

40220578424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386736350 (or 386736346 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 38.

The spelling of 40220578424 in words is "forty billion, two hundred twenty million, five hundred seventy-eight thousand, four hundred twenty-four".