42144837 has 8 divisors (see below), whose sum is σ = 64220736. Its totient is φ = 24082752.

The previous prime is 42144829. The next prime is 42144847. The reversal of 42144837 is 73844124.

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

It is not a de Polignac number, because 42144837 - 2³ = 42144829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42144798 and 42144807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144847) 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, 1003428 + ... + 1003469.

It is an arithmetic number, because the mean of its divisors is an integer number (8027592).

Almost surely, 2^42144837 is an apocalyptic number.

It is an amenable number.

42144837 is a deficient number, since it is larger than the sum of its proper divisors (22075899).

42144837 is a wasteful number, since it uses less digits than its factorization.

42144837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006907.

The product of its digits is 21504, while the sum is 33.

The square root of 42144837 is about 6491.9054983880. The cubic root of 42144837 is about 348.0017753245.

The spelling of 42144837 in words is "forty-two million, one hundred forty-four thousand, eight hundred thirty-seven".