1681972260 has 48 divisors (see below), whose sum is σ = 4716954816. Its totient is φ = 447818112.

The previous prime is 1681972249. The next prime is 1681972277. The reversal of 1681972260 is 622791861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16782 + ... + 60378.

It is an arithmetic number, because the mean of its divisors is an integer number (98269892).

Almost surely, 2^1681972260 is an apocalyptic number.

1681972260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1681972260 is an abundant number, since it is smaller than the sum of its proper divisors (3034982556).

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

1681972260 is a wasteful number, since it uses less digits than its factorization.

1681972260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44252 (or 44250 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1681972260 is about 41011.8551153200. The cubic root of 1681972260 is about 1189.2494054358.

The spelling of 1681972260 in words is "one billion, six hundred eighty-one million, nine hundred seventy-two thousand, two hundred sixty".