39940199 has 8 divisors (see below), whose sum is σ = 43068480. Its totient is φ = 36819936.

The previous prime is 39940193. The next prime is 39940247. The reversal of 39940199 is 99104993.

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 39940199 - 2⁸ = 39939943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39940193) 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, 12029 + ... + 14985.

It is an arithmetic number, because the mean of its divisors is an integer number (5383560).

Almost surely, 2^39940199 is an apocalyptic number.

39940199 is a deficient number, since it is larger than the sum of its proper divisors (3128281).

39940199 is a wasteful number, since it uses less digits than its factorization.

39940199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 39940199 is about 6319.8258678543. The cubic root of 39940199 is about 341.8246738795.

The spelling of 39940199 in words is "thirty-nine million, nine hundred forty thousand, one hundred ninety-nine".