38138486 has 4 divisors (see below), whose sum is σ = 57207732. Its totient is φ = 19069242.

The previous prime is 38138467. The next prime is 38138519. The reversal of 38138486 is 68483183.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×38138486² = 2909088228744392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9534620 + ... + 9534623.

It is an arithmetic number, because the mean of its divisors is an integer number (14301933).

Almost surely, 2^38138486 is an apocalyptic number.

38138486 is a deficient number, since it is larger than the sum of its proper divisors (19069246).

38138486 is a wasteful number, since it uses less digits than its factorization.

38138486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19069245.

The product of its digits is 110592, while the sum is 41.

The square root of 38138486 is about 6175.6364854159. The cubic root of 38138486 is about 336.6054547842.

The spelling of 38138486 in words is "thirty-eight million, one hundred thirty-eight thousand, four hundred eighty-six".