42090180 has 48 divisors (see below), whose sum is σ = 128568384. Its totient is φ = 10203520.

The previous prime is 42090131. The next prime is 42090197. The reversal of 42090180 is 8109024.

It is a self number, because there is not a number n which added to its sum of digits gives 42090180.

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 15 ways as a sum of consecutive naturals, for example, 31227 + ... + 32546.

It is an arithmetic number, because the mean of its divisors is an integer number (2678508).

Almost surely, 2^42090180 is an apocalyptic number.

It is an amenable number.

42090180 is an abundant number, since it is smaller than the sum of its proper divisors (86478204).

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

42090180 is a wasteful number, since it uses less digits than its factorization.

42090180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63796 (or 63794 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 42090180 is about 6487.6945057547. The cubic root of 42090180 is about 347.8512708351.

The spelling of 42090180 in words is "forty-two million, ninety thousand, one hundred eighty".