6622920 has 48 divisors (see below), whose sum is σ = 21525660. Its totient is φ = 1766016.

The previous prime is 6622907. The next prime is 6622939. The reversal of 6622920 is 292266.

It can be written as a sum of positive squares in 2 ways, for example, as 6441444 + 181476 = 2538^2 + 426^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8839 + ... + 9558.

Almost surely, 2^6622920 is an apocalyptic number.

6622920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6622920 is an abundant number, since it is smaller than the sum of its proper divisors (14902740).

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

6622920 is a wasteful number, since it uses less digits than its factorization.

6622920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18414 (or 18407 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 6622920 is about 2573.5034486085. The cubic root of 6622920 is about 187.7946301207.

The spelling of 6622920 in words is "six million, six hundred twenty-two thousand, nine hundred twenty".