42383838 has 16 divisors (see below), whose sum is σ = 96877440. Its totient is φ = 12109656.

The previous prime is 42383821. The next prime is 42383843. The reversal of 42383838 is 83838324.

It is a happy number.

It is a super-2 number, since 2×42383838² = 3592779447220488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42383796 and 42383805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504528 + ... + 504611.

It is an arithmetic number, because the mean of its divisors is an integer number (6054840).

Almost surely, 2^42383838 is an apocalyptic number.

42383838 is an abundant number, since it is smaller than the sum of its proper divisors (54493602).

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

42383838 is a wasteful number, since it uses less digits than its factorization.

42383838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009151.

The product of its digits is 110592, while the sum is 39.

The square root of 42383838 is about 6510.2870904439. The cubic root of 42383838 is about 348.6583685475.

The spelling of 42383838 in words is "forty-two million, three hundred eighty-three thousand, eight hundred thirty-eight".