8442620 has 24 divisors (see below), whose sum is σ = 18143664. Its totient is φ = 3298176.

The previous prime is 8442607. The next prime is 8442641. The reversal of 8442620 is 262448.

It is a self number, because there is not a number n which added to its sum of digits gives 8442620.

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 7 ways as a sum of consecutive naturals, for example, 4049 + ... + 5768.

It is an arithmetic number, because the mean of its divisors is an integer number (755986).

Almost surely, 2^8442620 is an apocalyptic number.

It is an amenable number.

8442620 is an abundant number, since it is smaller than the sum of its proper divisors (9701044).

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

8442620 is a wasteful number, since it uses less digits than its factorization.

8442620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9869 (or 9867 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 8442620 is about 2905.6186948738. The cubic root of 8442620 is about 203.6224916387.

The spelling of 8442620 in words is "eight million, four hundred forty-two thousand, six hundred twenty".