39909714 has 32 divisors (see below), whose sum is σ = 86533440. Its totient is φ = 12197952.

The previous prime is 39909703. The next prime is 39909733. The reversal of 39909714 is 41790993.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10617 + ... + 13875.

It is an arithmetic number, because the mean of its divisors is an integer number (2704170).

Almost surely, 2^39909714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39909714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43266720).

39909714 is an abundant number, since it is smaller than the sum of its proper divisors (46623726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39909714 is a wasteful number, since it uses less digits than its factorization.

39909714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 39909714 is about 6317.4135530294. The cubic root of 39909714 is about 341.7376840148.

The spelling of 39909714 in words is "thirty-nine million, nine hundred nine thousand, seven hundred fourteen".