1990296 has 96 divisors (see below), whose sum is σ = 6739200. Its totient is φ = 515520.

The previous prime is 1990279. The next prime is 1990319. The reversal of 1990296 is 6920991.

It is a super-2 number, since 2×1990296² = 7922556335232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1990296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5365 + ... + 5723.

It is an arithmetic number, because the mean of its divisors is an integer number (70200).

2^1990296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1990296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3369600).

1990296 is an abundant number, since it is smaller than the sum of its proper divisors (4748904).

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

1990296 is a wasteful number, since it uses less digits than its factorization.

1990296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1990296 is about 1410.7785084839. The cubic root of 1990296 is about 125.7880033011.

The spelling of 1990296 in words is "one million, nine hundred ninety thousand, two hundred ninety-six".