42424456 has 16 divisors (see below), whose sum is σ = 81239040. Its totient is φ = 20760720.

The previous prime is 42424453. The next prime is 42424457. The reversal of 42424456 is 65442424.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42424451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56040 + ... + 56791.

It is an arithmetic number, because the mean of its divisors is an integer number (5077440).

Almost surely, 2^42424456 is an apocalyptic number.

It is an amenable number.

42424456 is a deficient number, since it is larger than the sum of its proper divisors (38814584).

42424456 is a wasteful number, since it uses less digits than its factorization.

42424456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112884 (or 112880 counting only the distinct ones).

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

The square root of 42424456 is about 6513.4058679004. The cubic root of 42424456 is about 348.7697103919.

The spelling of 42424456 in words is "forty-two million, four hundred twenty-four thousand, four hundred fifty-six".