42131736 has 24 divisors (see below), whose sum is σ = 114106980. Its totient is φ = 14043888.

The previous prime is 42131717. The next prime is 42131737. The reversal of 42131736 is 63713124.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292510 + ... + 292653.

Almost surely, 2^42131736 is an apocalyptic number.

It is an amenable number.

42131736 is an abundant number, since it is smaller than the sum of its proper divisors (71975244).

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

42131736 is a wasteful number, since it uses less digits than its factorization.

42131736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585175 (or 585168 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 42131736 is about 6490.8963941816. The cubic root of 42131736 is about 347.9657120399.

The spelling of 42131736 in words is "forty-two million, one hundred thirty-one thousand, seven hundred thirty-six".