42755844 has 24 divisors (see below), whose sum is σ = 100485280. Its totient is φ = 14148864.

The previous prime is 42755837. The next prime is 42755857. The reversal of 42755844 is 44855724.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 11149 + ... + 14484.

Almost surely, 2^42755844 is an apocalyptic number.

It is an amenable number.

42755844 is an abundant number, since it is smaller than the sum of its proper divisors (57729436).

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

42755844 is a wasteful number, since it uses less digits than its factorization.

42755844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25779 (or 25777 counting only the distinct ones).

The product of its digits is 179200, while the sum is 39.

The square root of 42755844 is about 6538.7953018886. The cubic root of 42755844 is about 349.6754651569.

The spelling of 42755844 in words is "forty-two million, seven hundred fifty-five thousand, eight hundred forty-four".