1890000680 has 32 divisors (see below), whose sum is σ = 4476319200. Its totient is φ = 716210496.

The previous prime is 1890000649. The next prime is 1890000683. The reversal of 1890000680 is 860000981.

It is not an unprimeable number, because it can be changed into a prime (1890000683) 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, 1242662 + ... + 1244181.

It is an arithmetic number, because the mean of its divisors is an integer number (139884975).

Almost surely, 2^1890000680 is an apocalyptic number.

1890000680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1890000680 is an abundant number, since it is smaller than the sum of its proper divisors (2586318520).

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

1890000680 is a wasteful number, since it uses less digits than its factorization.

1890000680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486873 (or 2486869 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1890000680 is about 43474.1380593106. The cubic root of 1890000680 is about 1236.3857382216.

The spelling of 1890000680 in words is "one billion, eight hundred ninety million, six hundred eighty", and thus it is an aban number.