42438844 has 24 divisors (see below), whose sum is σ = 85043168. Its totient is φ = 18152640.

The previous prime is 42438839. The next prime is 42438857. The reversal of 42438844 is 44883424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17362 + ... + 19654.

Almost surely, 2^42438844 is an apocalyptic number.

It is an amenable number.

42438844 is an abundant number, since it is smaller than the sum of its proper divisors (42604324).

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

42438844 is a wasteful number, since it uses less digits than its factorization.

42438844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965 (or 2963 counting only the distinct ones).

The product of its digits is 98304, while the sum is 37.

The square root of 42438844 is about 6514.5102655534. The cubic root of 42438844 is about 348.8091336546.

The spelling of 42438844 in words is "forty-two million, four hundred thirty-eight thousand, eight hundred forty-four".