6620442 has 32 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 2134080.

The previous prime is 6620441. The next prime is 6620461. The reversal of 6620442 is 2440266.

It is not an unprimeable number, because it can be changed into a prime (6620441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34567 + ... + 34757.

It is an arithmetic number, because the mean of its divisors is an integer number (427680).

Almost surely, 2^6620442 is an apocalyptic number.

6620442 is an abundant number, since it is smaller than the sum of its proper divisors (7065318).

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

6620442 is a wasteful number, since it uses less digits than its factorization.

6620442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 6620442 is about 2573.0219587093. The cubic root of 6620442 is about 187.7712057528.

The spelling of 6620442 in words is "six million, six hundred twenty thousand, four hundred forty-two".