42131144 has 16 divisors (see below), whose sum is σ = 86177520. Its totient is φ = 19150480.

The previous prime is 42131119. The next prime is 42131153. The reversal of 42131144 is 44113124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239294 + ... + 239469.

It is an arithmetic number, because the mean of its divisors is an integer number (5386095).

Almost surely, 2^42131144 is an apocalyptic number.

42131144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42131144 is an abundant number, since it is smaller than the sum of its proper divisors (44046376).

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

42131144 is a wasteful number, since it uses less digits than its factorization.

42131144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478780 (or 478776 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 42131144 is about 6490.8507916913. The cubic root of 42131144 is about 347.9640822577.

Adding to 42131144 its reverse (44113124), we get a palindrome (86244268).

The spelling of 42131144 in words is "forty-two million, one hundred thirty-one thousand, one hundred forty-four".