42442637 has 8 divisors (see below), whose sum is σ = 44775360. Its totient is φ = 40119840.

The previous prime is 42442633. The next prime is 42442639. The reversal of 42442637 is 73624424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42442637 - 2² = 42442633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42442633) 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, 7337 + ... + 11777.

It is an arithmetic number, because the mean of its divisors is an integer number (5596920).

Almost surely, 2^42442637 is an apocalyptic number.

It is an amenable number.

42442637 is a deficient number, since it is larger than the sum of its proper divisors (2332723).

42442637 is a wasteful number, since it uses less digits than its factorization.

42442637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963.

The product of its digits is 32256, while the sum is 32.

The square root of 42442637 is about 6514.8013783998. The cubic root of 42442637 is about 348.8195250280.

The spelling of 42442637 in words is "forty-two million, four hundred forty-two thousand, six hundred thirty-seven".