1990599496 has 32 divisors (see below), whose sum is σ = 3982128480. Its totient is φ = 929593600.

The previous prime is 1990599463. The next prime is 1990599503. The reversal of 1990599496 is 6949950991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38050 + ... + 73681.

It is an arithmetic number, because the mean of its divisors is an integer number (124441515).

Almost surely, 2^1990599496 is an apocalyptic number.

It is an amenable number.

1990599496 is an abundant number, since it is smaller than the sum of its proper divisors (1991528984).

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

1990599496 is a wasteful number, since it uses less digits than its factorization.

1990599496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111885 (or 111881 counting only the distinct ones).

The product of its (nonzero) digits is 7085880, while the sum is 61.

The square root of 1990599496 is about 44616.1349289694. The cubic root of 1990599496 is about 1257.9439669109.

The spelling of 1990599496 in words is "one billion, nine hundred ninety million, five hundred ninety-nine thousand, four hundred ninety-six".