1682185990 has 16 divisors (see below), whose sum is σ = 3046069152. Its totient is φ = 668844544.

The previous prime is 1682185961. The next prime is 1682186003. The reversal of 1682185990 is 995812861.

It is a congruent 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, 501979 + ... + 505318.

It is an arithmetic number, because the mean of its divisors is an integer number (190379322).

Almost surely, 2^1682185990 is an apocalyptic number.

1682185990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1682185990 is a deficient number, since it is larger than the sum of its proper divisors (1363883162).

1682185990 is a wasteful number, since it uses less digits than its factorization.

1682185990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007471.

The product of its (nonzero) digits is 311040, while the sum is 49.

The square root of 1682185990 is about 41014.4607425235. The cubic root of 1682185990 is about 1189.2997763636.

The spelling of 1682185990 in words is "one billion, six hundred eighty-two million, one hundred eighty-five thousand, nine hundred ninety".