42456416 has 24 divisors (see below), whose sum is σ = 85367520. Its totient is φ = 20775808.

The previous prime is 42456397. The next prime is 42456433. The reversal of 42456416 is 61465424.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 12611 + ... + 15618.

It is an arithmetic number, because the mean of its divisors is an integer number (3556980).

Almost surely, 2^42456416 is an apocalyptic number.

It is an amenable number.

42456416 is an abundant number, since it is smaller than the sum of its proper divisors (42911104).

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

42456416 is a wasteful number, since it uses less digits than its factorization.

42456416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28286 (or 28278 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 42456416 is about 6515.8588075556. The cubic root of 42456416 is about 348.8572690243.

The spelling of 42456416 in words is "forty-two million, four hundred fifty-six thousand, four hundred sixteen".