6622620 has 48 divisors (see below), whose sum is σ = 19353600. Its totient is φ = 1688896.

The previous prime is 6622619. The next prime is 6622631. The reversal of 6622620 is 262266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020 + ... + 3779.

It is an arithmetic number, because the mean of its divisors is an integer number (403200).

Almost surely, 2^6622620 is an apocalyptic number.

6622620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6622620 is an abundant number, since it is smaller than the sum of its proper divisors (12730980).

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

6622620 is a wasteful number, since it uses less digits than its factorization.

6622620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834 (or 4832 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6622620 is about 2573.4451616462. The cubic root of 6622620 is about 187.7917945517.

Adding to 6622620 its reverse (262266), we get a palindrome (6884886).

The spelling of 6622620 in words is "six million, six hundred twenty-two thousand, six hundred twenty".