1990748 has 12 divisors (see below), whose sum is σ = 3578232. Its totient is φ = 968400.

The previous prime is 1990693. The next prime is 1990753. The reversal of 1990748 is 8470991.

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, 6578 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (298186).

2^1990748 is an apocalyptic number.

It is an amenable number.

1990748 is a deficient number, since it is larger than the sum of its proper divisors (1587484).

1990748 is a wasteful number, since it uses less digits than its factorization.

1990748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13492 (or 13490 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1990748 is about 1410.9386946285. The cubic root of 1990748 is about 125.7975248118.

The spelling of 1990748 in words is "one million, nine hundred ninety thousand, seven hundred forty-eight".