42131796 has 48 divisors (see below), whose sum is σ = 113723904. Its totient is φ = 11890656.

The previous prime is 42131779. The next prime is 42131807. The reversal of 42131796 is 69713124.

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, 3951 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (2369248).

Almost surely, 2^42131796 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 42131796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56861952).

42131796 is an abundant number, since it is smaller than the sum of its proper divisors (71592108).

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

42131796 is a wasteful number, since it uses less digits than its factorization.

42131796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6140 (or 6138 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 42131796 is about 6490.9010160378. The cubic root of 42131796 is about 347.9658772197.

The spelling of 42131796 in words is "forty-two million, one hundred thirty-one thousand, seven hundred ninety-six".