42131344 has 20 divisors (see below), whose sum is σ = 81812224. Its totient is φ = 21018528.

The previous prime is 42131281. The next prime is 42131347. The reversal of 42131344 is 44313124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131347) 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, 5089 + ... + 10495.

Almost surely, 2^42131344 is an apocalyptic number.

It is an amenable number.

42131344 is a deficient number, since it is larger than the sum of its proper divisors (39680880).

42131344 is a wasteful number, since it uses less digits than its factorization.

42131344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902 (or 5896 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 42131344 is about 6490.8661979739. The cubic root of 42131344 is about 347.9646328615.

Adding to 42131344 its reverse (44313124), we get a palindrome (86444468).

The spelling of 42131344 in words is "forty-two million, one hundred thirty-one thousand, three hundred forty-four".