39680994 has 16 divisors (see below), whose sum is σ = 80860032. Its totient is φ = 12977328.

The previous prime is 39680969. The next prime is 39680999. The reversal of 39680994 is 49908693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39680999) 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, 62074 + ... + 62709.

It is an arithmetic number, because the mean of its divisors is an integer number (5053752).

Almost surely, 2^39680994 is an apocalyptic number.

39680994 is an abundant number, since it is smaller than the sum of its proper divisors (41179038).

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

39680994 is a wasteful number, since it uses less digits than its factorization.

39680994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124841.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 39680994 is about 6299.2851975442. The cubic root of 39680994 is about 341.0836073777.

The spelling of 39680994 in words is "thirty-nine million, six hundred eighty thousand, nine hundred ninety-four".