42537138 has 16 divisors (see below), whose sum is σ = 97227840. Its totient is φ = 12153456.

The previous prime is 42537137. The next prime is 42537139. The reversal of 42537138 is 83173524.

It is an interprime number because it is at equal distance from previous prime (42537137) and next prime (42537139).

It is a junction number, because it is equal to n+sod(n) for n = 42537099 and 42537108.

It is not an unprimeable number, because it can be changed into a prime (42537137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506353 + ... + 506436.

It is an arithmetic number, because the mean of its divisors is an integer number (6076740).

Almost surely, 2^42537138 is an apocalyptic number.

42537138 is an abundant number, since it is smaller than the sum of its proper divisors (54690702).

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

42537138 is a wasteful number, since it uses less digits than its factorization.

42537138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012801.

The product of its digits is 20160, while the sum is 33.

The square root of 42537138 is about 6522.0501378018. The cubic root of 42537138 is about 349.0782221089.

The spelling of 42537138 in words is "forty-two million, five hundred thirty-seven thousand, one hundred thirty-eight".