42860790 has 72 divisors (see below), whose sum is σ = 129645360. Its totient is φ = 9795744.

The previous prime is 42860777. The next prime is 42860801. The reversal of 42860790 is 9706824.

42860790 is a `hidden beast` number, since 42 + 8 + 607 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 450 + ... + 9269.

It is an arithmetic number, because the mean of its divisors is an integer number (1800630).

Almost surely, 2^42860790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42860790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64822680).

42860790 is an abundant number, since it is smaller than the sum of its proper divisors (86784570).

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

42860790 is a wasteful number, since it uses less digits than its factorization.

42860790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9746 (or 9736 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 42860790 is about 6546.8152562906. The cubic root of 42860790 is about 349.9613290608.

The spelling of 42860790 in words is "forty-two million, eight hundred sixty thousand, seven hundred ninety".