1990596 has 12 divisors (see below), whose sum is σ = 4644752. Its totient is φ = 663528.

The previous prime is 1990579. The next prime is 1990607. The reversal of 1990596 is 6950991.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82930 + ... + 82953.

2^1990596 is an apocalyptic number.

It is an amenable number.

1990596 is an abundant number, since it is smaller than the sum of its proper divisors (2654156).

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

1990596 is a wasteful number, since it uses less digits than its factorization.

1990596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165890 (or 165888 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 1990596 is about 1410.8848287511. The cubic root of 1990596 is about 125.7943230487.

The spelling of 1990596 in words is "one million, nine hundred ninety thousand, five hundred ninety-six".