39678950 has 24 divisors (see below), whose sum is σ = 74024280. Its totient is φ = 15824000.

The previous prime is 39678937. The next prime is 39678953. The reversal of 39678950 is 5987693.

It is a junction number, because it is equal to n+sod(n) for n = 39678895 and 39678904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39678953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19061 + ... + 21039.

It is an arithmetic number, because the mean of its divisors is an integer number (3084345).

Almost surely, 2^39678950 is an apocalyptic number.

39678950 is a deficient number, since it is larger than the sum of its proper divisors (34345330).

39678950 is a wasteful number, since it uses less digits than its factorization.

39678950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 39678950 is about 6299.1229548247. The cubic root of 39678950 is about 341.0777507799.

The spelling of 39678950 in words is "thirty-nine million, six hundred seventy-eight thousand, nine hundred fifty".