42244137 has 24 divisors (see below), whose sum is σ = 66253824. Its totient is φ = 25782624.

The previous prime is 42244129. The next prime is 42244141. The reversal of 42244137 is 73144224.

It is not a de Polignac number, because 42244137 - 2³ = 42244129 is a prime.

It is a super-2 number, since 2×42244137² = 3569134221749538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42244137.

It is not an unprimeable number, because it can be changed into a prime (42204137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13438 + ... + 16280.

It is an arithmetic number, because the mean of its divisors is an integer number (2760576).

Almost surely, 2^42244137 is an apocalyptic number.

It is an amenable number.

42244137 is a deficient number, since it is larger than the sum of its proper divisors (24009687).

42244137 is a wasteful number, since it uses less digits than its factorization.

42244137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 2986 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 42244137 is about 6499.5489843527. The cubic root of 42244137 is about 348.2748769580.

The spelling of 42244137 in words is "forty-two million, two hundred forty-four thousand, one hundred thirty-seven".