39000231 has 16 divisors (see below), whose sum is σ = 58643200. Its totient is φ = 25610904.

The previous prime is 39000223. The next prime is 39000233. The reversal of 39000231 is 13200093.

It is not a de Polignac number, because 39000231 - 2³ = 39000223 is a prime.

It is a super-2 number, since 2×39000231² = 3042036036106722, which contains 22 as substring.

It is a Duffinian number.

39000231 is a modest number, since divided by 231 gives 39 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39000233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8971 + ... + 12588.

It is an arithmetic number, because the mean of its divisors is an integer number (3665200).

Almost surely, 2^39000231 is an apocalyptic number.

39000231 is a deficient number, since it is larger than the sum of its proper divisors (19642969).

39000231 is a wasteful number, since it uses less digits than its factorization.

39000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21635 (or 21629 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 39000231 is about 6245.0164931728. The cubic root of 39000231 is about 339.1218138470.

The spelling of 39000231 in words is "thirty-nine million, two hundred thirty-one", and thus it is an aban number.