8442722 has 4 divisors (see below), whose sum is σ = 12664086. Its totient is φ = 4221360.

The previous prime is 8442713. The next prime is 8442767. The reversal of 8442722 is 2272448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6806881 + 1635841 = 2609^2 + 1279^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110679 + ... + 2110682.

Almost surely, 2^8442722 is an apocalyptic number.

8442722 is a deficient number, since it is larger than the sum of its proper divisors (4221364).

8442722 is a wasteful number, since it uses less digits than its factorization.

8442722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221363.

The product of its digits is 7168, while the sum is 29.

The square root of 8442722 is about 2905.6362470206. The cubic root of 8442722 is about 203.6233116610.

The spelling of 8442722 in words is "eight million, four hundred forty-two thousand, seven hundred twenty-two".