42038186 has 8 divisors (see below), whose sum is σ = 63098724. Its totient is φ = 21005280.

The previous prime is 42038173. The next prime is 42038207. The reversal of 42038186 is 68183024.

It can be written as a sum of positive squares in 2 ways, for example, as 24690961 + 17347225 = 4969^2 + 4165^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2555 + ... + 9518.

Almost surely, 2^42038186 is an apocalyptic number.

42038186 is a deficient number, since it is larger than the sum of its proper divisors (21060538).

42038186 is a wasteful number, since it uses less digits than its factorization.

42038186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13816.

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

The square root of 42038186 is about 6483.6861429283. The cubic root of 42038186 is about 347.7079782557.

It can be divided in two parts, 42038 and 186, that added together give a palindrome (42224).

The spelling of 42038186 in words is "forty-two million, thirty-eight thousand, one hundred eighty-six".