1990588 has 12 divisors (see below), whose sum is σ = 3497032. Its totient is φ = 991440.

The previous prime is 1990579. The next prime is 1990607. The reversal of 1990588 is 8850991.

1990588 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1990588.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418 + ... + 2038.

2^1990588 is an apocalyptic number.

It is an amenable number.

1990588 is a deficient number, since it is larger than the sum of its proper divisors (1506444).

1990588 is a wasteful number, since it uses less digits than its factorization.

1990588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1990588 is about 1410.8819936479. The cubic root of 1990588 is about 125.7941545303.

The spelling of 1990588 in words is "one million, nine hundred ninety thousand, five hundred eighty-eight".