1990336 has 28 divisors (see below), whose sum is σ = 3995928. Its totient is φ = 983552.

The previous prime is 1990327. The next prime is 1990337. The reversal of 1990336 is 6330991.

It is a super-2 number, since 2×1990336² = 7922874785792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1990298 and 1990307.

It is not an unprimeable number, because it can be changed into a prime (1990337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8655 + ... + 8881.

2^1990336 is an apocalyptic number.

1990336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1990336 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1990336 is a wasteful number, since it uses less digits than its factorization.

1990336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1990336 is about 1410.7926849825. The cubic root of 1990336 is about 125.7888459708.

The spelling of 1990336 in words is "one million, nine hundred ninety thousand, three hundred thirty-six".