6638252 has 12 divisors (see below), whose sum is σ = 11669280. Its totient is φ = 3304176.

The previous prime is 6638251. The next prime is 6638263. The reversal of 6638252 is 2528366.

It is a d-powerful number, because it can be written as 6⁴ + 6⁷ + 3 + 8⁷ + 2¹⁶ + 5² + 2²² .

It is not an unprimeable number, because it can be changed into a prime (6638251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2708 + ... + 4539.

It is an arithmetic number, because the mean of its divisors is an integer number (972440).

Almost surely, 2^6638252 is an apocalyptic number.

It is an amenable number.

6638252 is a deficient number, since it is larger than the sum of its proper divisors (5031028).

6638252 is a wasteful number, since it uses less digits than its factorization.

6638252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480 (or 7478 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 6638252 is about 2576.4805452400. The cubic root of 6638252 is about 187.9394327302.

The spelling of 6638252 in words is "six million, six hundred thirty-eight thousand, two hundred fifty-two".