42890580 has 48 divisors (see below), whose sum is σ = 133439040. Its totient is φ = 11437344.

The previous prime is 42890569. The next prime is 42890593. The reversal of 42890580 is 8509824.

42890580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39174 + ... + 40253.

It is an arithmetic number, because the mean of its divisors is an integer number (2779980).

Almost surely, 2^42890580 is an apocalyptic number.

It is an amenable number.

42890580 is an abundant number, since it is smaller than the sum of its proper divisors (90548460).

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

42890580 is a wasteful number, since it uses less digits than its factorization.

42890580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79445 (or 79437 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 42890580 is about 6549.0900131240. The cubic root of 42890580 is about 350.0423894237.

The spelling of 42890580 in words is "forty-two million, eight hundred ninety thousand, five hundred eighty".