39899141 has 8 divisors (see below), whose sum is σ = 41235744. Its totient is φ = 38581200.

The previous prime is 39899137. The next prime is 39899143. The reversal of 39899141 is 14199893.

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 39899141 - 2² = 39899137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39899092 and 39899101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39899143) 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, 251 + ... + 8936.

It is an arithmetic number, because the mean of its divisors is an integer number (5154468).

Almost surely, 2^39899141 is an apocalyptic number.

It is an amenable number.

39899141 is a deficient number, since it is larger than the sum of its proper divisors (1336603).

39899141 is a wasteful number, since it uses less digits than its factorization.

39899141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331.

The product of its digits is 69984, while the sum is 44.

The square root of 39899141 is about 6316.5766836159. The cubic root of 39899141 is about 341.7075032953.

The spelling of 39899141 in words is "thirty-nine million, eight hundred ninety-nine thousand, one hundred forty-one".