42038816 has 24 divisors (see below), whose sum is σ = 83934144. Its totient is φ = 20722240.

The previous prime is 42038813. The next prime is 42038837. The reversal of 42038816 is 61883024.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (42038813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6980 + ... + 11523.

It is an arithmetic number, because the mean of its divisors is an integer number (3497256).

Almost surely, 2^42038816 is an apocalyptic number.

It is an amenable number.

42038816 is a deficient number, since it is larger than the sum of its proper divisors (41895328).

42038816 is a wasteful number, since it uses less digits than its factorization.

42038816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18584 (or 18576 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 42038816 is about 6483.7347262207. The cubic root of 42038816 is about 347.7097152077.

The spelling of 42038816 in words is "forty-two million, thirty-eight thousand, eight hundred sixteen".