39990498 has 16 divisors (see below), whose sum is σ = 81932256. Its totient is φ = 13004960.

The previous prime is 39990487. The next prime is 39990521. The reversal of 39990498 is 89409993.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39990498.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81036 + ... + 81527.

It is an arithmetic number, because the mean of its divisors is an integer number (5120766).

Almost surely, 2^39990498 is an apocalyptic number.

39990498 is an abundant number, since it is smaller than the sum of its proper divisors (41941758).

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

39990498 is a wasteful number, since it uses less digits than its factorization.

39990498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162609.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 39990498 is about 6323.8040766615. The cubic root of 39990498 is about 341.9681068717.

The spelling of 39990498 in words is "thirty-nine million, nine hundred ninety thousand, four hundred ninety-eight".