42422844 has 12 divisors (see below), whose sum is σ = 98986664. Its totient is φ = 14140944.

The previous prime is 42422789. The next prime is 42422857. The reversal of 42422844 is 44822424.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1767607 + ... + 1767630.

Almost surely, 2^42422844 is an apocalyptic number.

It is an amenable number.

42422844 is an abundant number, since it is smaller than the sum of its proper divisors (56563820).

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

42422844 is a wasteful number, since it uses less digits than its factorization.

42422844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535244 (or 3535242 counting only the distinct ones).

The product of its digits is 16384, while the sum is 30.

The square root of 42422844 is about 6513.2821219413. The cubic root of 42422844 is about 348.7652929407.

The spelling of 42422844 in words is "forty-two million, four hundred twenty-two thousand, eight hundred forty-four".