6624340 has 12 divisors (see below), whose sum is σ = 13911156. Its totient is φ = 2649728.

The previous prime is 6624337. The next prime is 6624353. The reversal of 6624340 is 434266.

It can be written as a sum of positive squares in 2 ways, for example, as 1669264 + 4955076 = 1292^2 + 2226^2 .

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, 165589 + ... + 165628.

It is an arithmetic number, because the mean of its divisors is an integer number (1159263).

Almost surely, 2^6624340 is an apocalyptic number.

It is an amenable number.

6624340 is an abundant number, since it is smaller than the sum of its proper divisors (7286816).

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

6624340 is a wasteful number, since it uses less digits than its factorization.

6624340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331226 (or 331224 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 6624340 is about 2573.7793223196. The cubic root of 6624340 is about 187.8080506521.

The spelling of 6624340 in words is "six million, six hundred twenty-four thousand, three hundred forty".