42039038 has 32 divisors (see below), whose sum is σ = 68290560. Its totient is φ = 19363680.

The previous prime is 42039037. The next prime is 42039043. The reversal of 42039038 is 83093024.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42039038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42039037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185081 + ... + 185307.

It is an arithmetic number, because the mean of its divisors is an integer number (2134080).

Almost surely, 2^42039038 is an apocalyptic number.

42039038 is a deficient number, since it is larger than the sum of its proper divisors (26251522).

42039038 is a wasteful number, since it uses less digits than its factorization.

42039038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 42039038 is about 6483.7518459608. The cubic root of 42039038 is about 347.7103272723.

The spelling of 42039038 in words is "forty-two million, thirty-nine thousand, thirty-eight".