1890988 has 18 divisors (see below), whose sum is σ = 3638348. Its totient is φ = 859320.

The previous prime is 1890953. The next prime is 1890997. The reversal of 1890988 is 8890981.

It is a super-2 number, since 2×1890988² = 7151671232288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1470 + ... + 2437.

2^1890988 is an apocalyptic number.

It is an amenable number.

1890988 is a deficient number, since it is larger than the sum of its proper divisors (1747360).

1890988 is a wasteful number, since it uses less digits than its factorization.

1890988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933 (or 3920 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 43.

The square root of 1890988 is about 1375.1319936646. The cubic root of 1890988 is about 123.6600993147.

The spelling of 1890988 in words is "one million, eight hundred ninety thousand, nine hundred eighty-eight".