6402905982 has 40 divisors (see below), whose sum is σ = 15651552312. Its totient is φ = 1940274000.

The previous prime is 6402905921. The next prime is 6402905983. The reversal of 6402905982 is 2895092046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402905983) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1794769 + ... + 1798332.

Almost surely, 2^6402905982 is an apocalyptic number.

6402905982 is an abundant number, since it is smaller than the sum of its proper divisors (9248646330).

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

6402905982 is a wasteful number, since it uses less digits than its factorization.

6402905982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593126 (or 3593117 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 6402905982 is about 80018.1603262659. The cubic root of 6402905982 is about 1856.9164987078.

The spelling of 6402905982 in words is "six billion, four hundred two million, nine hundred five thousand, nine hundred eighty-two".