6409252 has 12 divisors (see below), whose sum is σ = 11266780. Its totient is φ = 3190176.

The previous prime is 6409223. The next prime is 6409253. The reversal of 6409252 is 2529046.

It can be written as a sum of positive squares in 2 ways, for example, as 4260096 + 2149156 = 2064^2 + 1466^2 .

It is a super-2 number, since 2×6409252² = 82157022399008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6409252.

It is not an unprimeable number, because it can be changed into a prime (6409253) 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, 2583 + ... + 4414.

Almost surely, 2^6409252 is an apocalyptic number.

It is an amenable number.

6409252 is a deficient number, since it is larger than the sum of its proper divisors (4857528).

6409252 is a wasteful number, since it uses less digits than its factorization.

6409252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230 (or 7228 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6409252 is about 2531.6500548062. The cubic root of 6409252 is about 185.7529768921.

The spelling of 6409252 in words is "six million, four hundred nine thousand, two hundred fifty-two".