6652440 has 96 divisors (see below), whose sum is σ = 22913280. Its totient is φ = 1668096.

The previous prime is 6652439. The next prime is 6652441. The reversal of 6652440 is 442566.

It is a happy number.

6652440 is a `hidden beast` number, since 6 + 652 + 4 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6652439) and next prime (6652441).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6652441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5577 + ... + 6663.

It is an arithmetic number, because the mean of its divisors is an integer number (238680).

Almost surely, 2^6652440 is an apocalyptic number.

6652440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6652440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11456640).

6652440 is an abundant number, since it is smaller than the sum of its proper divisors (16260840).

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

6652440 is a wasteful number, since it uses less digits than its factorization.

6652440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 6652440 is about 2579.2324439647. The cubic root of 6652440 is about 188.0732323722.

It can be divided in two parts, 66524 and 40, that added together give a square (66564 = 258²).

The spelling of 6652440 in words is "six million, six hundred fifty-two thousand, four hundred forty".