6652220 has 12 divisors (see below), whose sum is σ = 13969704. Its totient is φ = 2660880.

The previous prime is 6652213. The next prime is 6652231. The reversal of 6652220 is 222566.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166286 + ... + 166325.

It is an arithmetic number, because the mean of its divisors is an integer number (1164142).

Almost surely, 2^6652220 is an apocalyptic number.

It is an amenable number.

6652220 is an abundant number, since it is smaller than the sum of its proper divisors (7317484).

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

6652220 is a wasteful number, since it uses less digits than its factorization.

6652220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332620 (or 332618 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6652220 is about 2579.1897952652. The cubic root of 6652220 is about 188.0711591195.

Adding to 6652220 its reverse (222566), we get a palindrome (6874786).

The spelling of 6652220 in words is "six million, six hundred fifty-two thousand, two hundred twenty".