42537140 has 12 divisors (see below), whose sum is σ = 89328036. Its totient is φ = 17014848.

The previous prime is 42537139. The next prime is 42537149. The reversal of 42537140 is 4173524.

It can be written as a sum of positive squares in 2 ways, for example, as 24661156 + 17875984 = 4966^2 + 4228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42537149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063409 + ... + 1063448.

It is an arithmetic number, because the mean of its divisors is an integer number (7444003).

Almost surely, 2^42537140 is an apocalyptic number.

It is an amenable number.

42537140 is an abundant number, since it is smaller than the sum of its proper divisors (46790896).

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

42537140 is a wasteful number, since it uses less digits than its factorization.

42537140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126866 (or 2126864 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 42537140 is about 6522.0502911278. The cubic root of 42537140 is about 349.0782275798.

The spelling of 42537140 in words is "forty-two million, five hundred thirty-seven thousand, one hundred forty".