42492180 has 48 divisors (see below), whose sum is σ = 125979840. Its totient is φ = 10664448.

The previous prime is 42492143. The next prime is 42492193. The reversal of 42492180 is 8129424.

It is a super-2 number, since 2×42492180² = 3611170722304800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19810 + ... + 21849.

It is an arithmetic number, because the mean of its divisors is an integer number (2624580).

Almost surely, 2^42492180 is an apocalyptic number.

It is an amenable number.

42492180 is an abundant number, since it is smaller than the sum of its proper divisors (83487660).

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

42492180 is a wasteful number, since it uses less digits than its factorization.

42492180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41688 (or 41686 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 42492180 is about 6518.6026109896. The cubic root of 42492180 is about 348.9551971343.

The spelling of 42492180 in words is "forty-two million, four hundred ninety-two thousand, one hundred eighty".