1682981268 has 12 divisors (see below), whose sum is σ = 3926956320. Its totient is φ = 560993752.

The previous prime is 1682981263. The next prime is 1682981269. The reversal of 1682981268 is 8621892861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1682981268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1682981263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70124208 + ... + 70124231.

It is an arithmetic number, because the mean of its divisors is an integer number (327246360).

Almost surely, 2^1682981268 is an apocalyptic number.

It is an amenable number.

1682981268 is an abundant number, since it is smaller than the sum of its proper divisors (2243975052).

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

1682981268 is a wasteful number, since it uses less digits than its factorization.

1682981268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140248446 (or 140248444 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 1682981268 is about 41024.1546896460. The cubic root of 1682981268 is about 1189.4871664504.

The spelling of 1682981268 in words is "one billion, six hundred eighty-two million, nine hundred eighty-one thousand, two hundred sixty-eight".