6409992 has 32 divisors (see below), whose sum is σ = 16869600. Its totient is φ = 2024064.

The previous prime is 6409943. The next prime is 6410009. The reversal of 6409992 is 2999046.

6409992 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 6409992.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6573 + ... + 7484.

It is an arithmetic number, because the mean of its divisors is an integer number (527175).

Almost surely, 2^6409992 is an apocalyptic number.

It is an amenable number.

6409992 is an abundant number, since it is smaller than the sum of its proper divisors (10459608).

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

6409992 is a wasteful number, since it uses less digits than its factorization.

6409992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14085 (or 14081 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 6409992 is about 2531.7962003289. The cubic root of 6409992 is about 185.7601255117.

The spelling of 6409992 in words is "six million, four hundred nine thousand, nine hundred ninety-two".