42398837 has 8 divisors (see below), whose sum is σ = 45964800. Its totient is φ = 38876400.

The previous prime is 42398827. The next prime is 42398893. The reversal of 42398837 is 73889324.

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 42398837 - 2⁶ = 42398773 is a prime.

It is a super-2 number, since 2×42398837² = 3595322757905138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42398827) 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, 8837 + ... + 12762.

It is an arithmetic number, because the mean of its divisors is an integer number (5745600).

Almost surely, 2^42398837 is an apocalyptic number.

It is an amenable number.

42398837 is a deficient number, since it is larger than the sum of its proper divisors (3565963).

42398837 is a wasteful number, since it uses less digits than its factorization.

42398837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21763.

The product of its digits is 290304, while the sum is 44.

The square root of 42398837 is about 6511.4389346749. The cubic root of 42398837 is about 348.6994920068.

The spelling of 42398837 in words is "forty-two million, three hundred ninety-eight thousand, eight hundred thirty-seven".