42422664 has 16 divisors (see below), whose sum is σ = 106056720. Its totient is φ = 14140880.

The previous prime is 42422641. The next prime is 42422669. The reversal of 42422664 is 46622424.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (42422669) 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, 883782 + ... + 883829.

It is an arithmetic number, because the mean of its divisors is an integer number (6628545).

Almost surely, 2^42422664 is an apocalyptic number.

It is an amenable number.

42422664 is an abundant number, since it is smaller than the sum of its proper divisors (63634056).

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

42422664 is a wasteful number, since it uses less digits than its factorization.

42422664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767620 (or 1767616 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

The square root of 42422664 is about 6513.2683040084. The cubic root of 42422664 is about 348.7647996700.

The spelling of 42422664 in words is "forty-two million, four hundred twenty-two thousand, six hundred sixty-four".