39853940 has 48 divisors (see below), whose sum is σ = 99816192. Its totient is φ = 13069056.

The previous prime is 39853939. The next prime is 39853973. The reversal of 39853940 is 4935893.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 2969 + ... + 9408.

It is an arithmetic number, because the mean of its divisors is an integer number (2079504).

Almost surely, 2^39853940 is an apocalyptic number.

It is an amenable number.

39853940 is an abundant number, since it is smaller than the sum of its proper divisors (59962252).

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

39853940 is a wasteful number, since it uses less digits than its factorization.

39853940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12416 (or 12414 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 39853940 is about 6312.9977031518. The cubic root of 39853940 is about 341.5784164963.

The spelling of 39853940 in words is "thirty-nine million, eight hundred fifty-three thousand, nine hundred forty".