1990012 has 12 divisors (see below), whose sum is σ = 3493000. Its totient is φ = 992016.

The previous prime is 1990007. The next prime is 1990031. The reversal of 1990012 is 2100991.

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, 1498 + ... + 2494.

2^1990012 is an apocalyptic number.

It is an amenable number.

1990012 is a deficient number, since it is larger than the sum of its proper divisors (1502988).

1990012 is a wasteful number, since it uses less digits than its factorization.

1990012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1990012 is about 1410.6778512474. The cubic root of 1990012 is about 125.7820200215.

The spelling of 1990012 in words is "one million, nine hundred ninety thousand, twelve".