39139190 has 16 divisors (see below), whose sum is σ = 70548192. Its totient is φ = 15633984.

The previous prime is 39139187. The next prime is 39139193. The reversal of 39139190 is 9193193.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39139187) and next prime (39139193).

It is a super-2 number, since 2×39139190² = 3063752387712200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39139190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39139193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6287 + ... + 10853.

It is an arithmetic number, because the mean of its divisors is an integer number (4409262).

Almost surely, 2^39139190 is an apocalyptic number.

39139190 is a deficient number, since it is larger than the sum of its proper divisors (31409002).

39139190 is a wasteful number, since it uses less digits than its factorization.

39139190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 39139190 is about 6256.1321916980. The cubic root of 39139190 is about 339.5241035201.

The spelling of 39139190 in words is "thirty-nine million, one hundred thirty-nine thousand, one hundred ninety".