1990676 has 18 divisors (see below), whose sum is σ = 3631530. Its totient is φ = 953680.

The previous prime is 1990661. The next prime is 1990679. The reversal of 1990676 is 6760991.

It can be written as a sum of positive squares in only one way, i.e., 1716100 + 274576 = 1310^2 + 524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15131 + ... + 15261.

2^1990676 is an apocalyptic number.

It is an amenable number.

1990676 is a deficient number, since it is larger than the sum of its proper divisors (1640854).

1990676 is a wasteful number, since it uses less digits than its factorization.

1990676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1990676 is about 1410.9131794692. The cubic root of 1990676 is about 125.7960082075.

The spelling of 1990676 in words is "one million, nine hundred ninety thousand, six hundred seventy-six".