42131180 has 72 divisors (see below), whose sum is σ = 110870928. Its totient is φ = 13329792.

The previous prime is 42131161. The next prime is 42131183. The reversal of 42131180 is 8113124.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (42131183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11087 + ... + 14393.

It is an arithmetic number, because the mean of its divisors is an integer number (1539874).

Almost surely, 2^42131180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42131180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55435464).

42131180 is an abundant number, since it is smaller than the sum of its proper divisors (68739748).

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

42131180 is a wasteful number, since it uses less digits than its factorization.

42131180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343 (or 3334 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 42131180 is about 6490.8535648249. The cubic root of 42131180 is about 347.9641813665.

The spelling of 42131180 in words is "forty-two million, one hundred thirty-one thousand, one hundred eighty".