6660252 has 48 divisors (see below), whose sum is σ = 17498880. Its totient is φ = 2190384.

The previous prime is 6660239. The next prime is 6660287. The reversal of 6660252 is 2520666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8593 + ... + 9335.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

Almost surely, 2^6660252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6660252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8749440).

6660252 is an abundant number, since it is smaller than the sum of its proper divisors (10838628).

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

6660252 is a wasteful number, since it uses less digits than its factorization.

6660252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 6660252 is about 2580.7464036592. The cubic root of 6660252 is about 188.1468220805.

The spelling of 6660252 in words is "six million, six hundred sixty thousand, two hundred fifty-two".