42212844 has 18 divisors (see below), whose sum is σ = 106704780. Its totient is φ = 14070936.

The previous prime is 42212839. The next prime is 42212867. The reversal of 42212844 is 44821224.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586254 + ... + 586325.

Almost surely, 2^42212844 is an apocalyptic number.

It is an amenable number.

42212844 is an abundant number, since it is smaller than the sum of its proper divisors (64491936).

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

42212844 is a wasteful number, since it uses less digits than its factorization.

42212844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172589 (or 1172584 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 42212844 is about 6497.1412174894. The cubic root of 42212844 is about 348.1888590417.

The spelling of 42212844 in words is "forty-two million, two hundred twelve thousand, eight hundred forty-four".