39908146 has 16 divisors (see below), whose sum is σ = 63638784. Its totient is φ = 18704704.

The previous prime is 39908137. The next prime is 39908149. The reversal of 39908146 is 64180993.

It is a junction number, because it is equal to n+sod(n) for n = 39908099 and 39908108.

It is not an unprimeable number, because it can be changed into a prime (39908149) 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, 6711 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (3977424).

Almost surely, 2^39908146 is an apocalyptic number.

39908146 is a deficient number, since it is larger than the sum of its proper divisors (23730638).

39908146 is a wasteful number, since it uses less digits than its factorization.

39908146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 39908146 is about 6317.2894503893. The cubic root of 39908146 is about 341.7332084820.

The spelling of 39908146 in words is "thirty-nine million, nine hundred eight thousand, one hundred forty-six".