1990760 has 32 divisors (see below), whose sum is σ = 4521960. Its totient is φ = 788736.

The previous prime is 1990759. The next prime is 1990787. The reversal of 1990760 is 670991.

It can be written as a sum of positive squares in 4 ways, for example, as 879844 + 1110916 = 938^2 + 1054^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6122 + ... + 6438.

2^1990760 is an apocalyptic number.

1990760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1990760 is an abundant number, since it is smaller than the sum of its proper divisors (2531200).

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

1990760 is a wasteful number, since it uses less digits than its factorization.

1990760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1990760 is about 1410.9429471102. The cubic root of 1990760 is about 125.7977775756.

The spelling of 1990760 in words is "one million, nine hundred ninety thousand, seven hundred sixty".