42404020456 has 32 divisors (see below), whose sum is σ = 90876444480. Its totient is φ = 18171014400.

The previous prime is 42404020453. The next prime is 42404020517. The reversal of 42404020456 is 65402040424.

It is a happy number.

42404020456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42404020453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493411 + ... + 572941.

It is an arithmetic number, because the mean of its divisors is an integer number (2839888890).

Almost surely, 2^42404020456 is an apocalyptic number.

It is an amenable number.

42404020456 is an abundant number, since it is smaller than the sum of its proper divisors (48472424024).

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

42404020456 is a wasteful number, since it uses less digits than its factorization.

42404020456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89065 (or 89061 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The spelling of 42404020456 in words is "forty-two billion, four hundred four million, twenty thousand, four hundred fifty-six".