8220442 has 8 divisors (see below), whose sum is σ = 12344832. Its totient is φ = 4105500.

The previous prime is 8220419. The next prime is 8220461. The reversal of 8220442 is 2440228.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 517 + ... + 4087.

It is an arithmetic number, because the mean of its divisors is an integer number (1543104).

Almost surely, 2^8220442 is an apocalyptic number.

8220442 is a deficient number, since it is larger than the sum of its proper divisors (4124390).

8220442 is a wasteful number, since it uses less digits than its factorization.

8220442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 8220442 is about 2867.1313189319. The cubic root of 8220442 is about 201.8203971665.

The spelling of 8220442 in words is "eight million, two hundred twenty thousand, four hundred forty-two".