42220322 has 8 divisors (see below), whose sum is σ = 63360336. Its totient is φ = 21100212.

The previous prime is 42220319. The next prime is 42220331. The reversal of 42220322 is 22302224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42220322.

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, 2693 + ... + 9575.

It is an arithmetic number, because the mean of its divisors is an integer number (7920042).

Almost surely, 2^42220322 is an apocalyptic number.

42220322 is a deficient number, since it is larger than the sum of its proper divisors (21140014).

42220322 is a wasteful number, since it uses less digits than its factorization.

42220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9952.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42220322 is about 6497.7166758793. The cubic root of 42220322 is about 348.2094183652.

Adding to 42220322 its reverse (22302224), we get a palindrome (64522546).

The spelling of 42220322 in words is "forty-two million, two hundred twenty thousand, three hundred twenty-two".