38192139 has 6 divisors (see below), whose sum is σ = 55166436. Its totient is φ = 25461420.

The previous prime is 38192113. The next prime is 38192173. The reversal of 38192139 is 93129183.

It is not a de Polignac number, because 38192139 - 2⁸ = 38191883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38192239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2121777 + ... + 2121794.

It is an arithmetic number, because the mean of its divisors is an integer number (9194406).

Almost surely, 2^38192139 is an apocalyptic number.

38192139 is a deficient number, since it is larger than the sum of its proper divisors (16974297).

38192139 is a wasteful number, since it uses less digits than its factorization.

38192139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243577 (or 4243574 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 38192139 is about 6179.9788834591. The cubic root of 38192139 is about 336.7632256881.

The spelling of 38192139 in words is "thirty-eight million, one hundred ninety-two thousand, one hundred thirty-nine".