39680990 has 32 divisors (see below), whose sum is σ = 74299680. Its totient is φ = 15240064.

The previous prime is 39680969. The next prime is 39680999. The reversal of 39680990 is 9908693.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 84737 + ... + 85203.

It is an arithmetic number, because the mean of its divisors is an integer number (2321865).

Almost surely, 2^39680990 is an apocalyptic number.

39680990 is a deficient number, since it is larger than the sum of its proper divisors (34618690).

39680990 is a wasteful number, since it uses less digits than its factorization.

39680990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 39680990 is about 6299.2848800479. The cubic root of 39680990 is about 341.0835959168.

The spelling of 39680990 in words is "thirty-nine million, six hundred eighty thousand, nine hundred ninety".