42398872 has 16 divisors (see below), whose sum is σ = 79576560. Its totient is φ = 21178464.

The previous prime is 42398827. The next prime is 42398893. The reversal of 42398872 is 27889324.

It is a happy number.

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, 8998 + ... + 12874.

It is an arithmetic number, because the mean of its divisors is an integer number (4973535).

Almost surely, 2^42398872 is an apocalyptic number.

It is an amenable number.

42398872 is a deficient number, since it is larger than the sum of its proper divisors (37177688).

42398872 is a wasteful number, since it uses less digits than its factorization.

42398872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250 (or 5246 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 42398872 is about 6511.4416222523. The cubic root of 42398872 is about 348.6995879566.

The spelling of 42398872 in words is "forty-two million, three hundred ninety-eight thousand, eight hundred seventy-two".