1982908468 has 12 divisors (see below), whose sum is σ = 3472095172. Its totient is φ = 990881280.

The previous prime is 1982908409. The next prime is 1982908469. The reversal of 1982908468 is 8648092891.

It can be written as a sum of positive squares in 2 ways, for example, as 573506704 + 1409401764 = 23948^2 + 37542^2 .

It is a super-2 number, since 2×1982908468² = 7863851984932214048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982908469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135405 + ... + 149332.

Almost surely, 2^1982908468 is an apocalyptic number.

It is an amenable number.

1982908468 is a deficient number, since it is larger than the sum of its proper divisors (1489186704).

1982908468 is a wasteful number, since it uses less digits than its factorization.

1982908468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286482 (or 286480 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The square root of 1982908468 is about 44529.8604084944. The cubic root of 1982908468 is about 1256.3217806794.

The spelling of 1982908468 in words is "one billion, nine hundred eighty-two million, nine hundred eight thousand, four hundred sixty-eight".