42294872 has 8 divisors (see below), whose sum is σ = 79302900. Its totient is φ = 21147432.

The previous prime is 42294869. The next prime is 42294911. The reversal of 42294872 is 27849224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2643422 + ... + 2643437.

Almost surely, 2^42294872 is an apocalyptic number.

It is an amenable number.

42294872 is a deficient number, since it is larger than the sum of its proper divisors (37008028).

42294872 is a wasteful number, since it uses less digits than its factorization.

42294872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286865 (or 5286861 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 42294872 is about 6503.4507763187. The cubic root of 42294872 is about 348.4142466481.

The spelling of 42294872 in words is "forty-two million, two hundred ninety-four thousand, eight hundred seventy-two".