42890860 has 24 divisors (see below), whose sum is σ = 93987936. Its totient is φ = 16410240.

The previous prime is 42890857. The next prime is 42890891. The reversal of 42890860 is 6809824.

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, 46161 + ... + 47080.

It is an arithmetic number, because the mean of its divisors is an integer number (3916164).

Almost surely, 2^42890860 is an apocalyptic number.

It is an amenable number.

42890860 is an abundant number, since it is smaller than the sum of its proper divisors (51097076).

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

42890860 is a wasteful number, since it uses less digits than its factorization.

42890860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93273 (or 93271 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 42890860 is about 6549.1113901048. Note that the first 3 decimals coincide. The cubic root of 42890860 is about 350.0431511423.

The spelling of 42890860 in words is "forty-two million, eight hundred ninety thousand, eight hundred sixty".