1990696 has 32 divisors (see below), whose sum is σ = 4032000. Its totient is φ = 918720.

The previous prime is 1990693. The next prime is 1990753. The reversal of 1990696 is 6960991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5530 + ... + 5878.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2^1990696 is an apocalyptic number.

It is an amenable number.

1990696 is an abundant number, since it is smaller than the sum of its proper divisors (2041304).

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

1990696 is a wasteful number, since it uses less digits than its factorization.

1990696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 1990696 is about 1410.9202670598. The cubic root of 1990696 is about 125.7964294901.

It can be divided in two parts, 19906 and 96, that added together give a palindrome (20002).

The spelling of 1990696 in words is "one million, nine hundred ninety thousand, six hundred ninety-six".