39840113 has 8 divisors (see below), whose sum is σ = 41532480. Its totient is φ = 38169040.

The previous prime is 39840109. The next prime is 39840127. The reversal of 39840113 is 31104893.

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

It is a cyclic number.

It is not a de Polignac number, because 39840113 - 2² = 39840109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39840103) 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, 1445 + ... + 9042.

It is an arithmetic number, because the mean of its divisors is an integer number (5191560).

Almost surely, 2^39840113 is an apocalyptic number.

It is an amenable number.

39840113 is a deficient number, since it is larger than the sum of its proper divisors (1692367).

39840113 is a wasteful number, since it uses less digits than its factorization.

39840113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10647.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 39840113 is about 6311.9024865725. The cubic root of 39840113 is about 341.5389093102.

The spelling of 39840113 in words is "thirty-nine million, eight hundred forty thousand, one hundred thirteen".