722307142 has 8 divisors (see below), whose sum is σ = 1084095432. Its totient is φ = 360942000.

The previous prime is 722307133. The next prime is 722307149. The reversal of 722307142 is 241703227.

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 722307142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722307149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101484 + ... + 108367.

It is an arithmetic number, because the mean of its divisors is an integer number (135511929).

Almost surely, 2^722307142 is an apocalyptic number.

722307142 is a deficient number, since it is larger than the sum of its proper divisors (361788290).

722307142 is a wasteful number, since it uses less digits than its factorization.

722307142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211574.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 722307142 is about 26875.7723982028. The cubic root of 722307142 is about 897.2372653455.

The spelling of 722307142 in words is "seven hundred twenty-two million, three hundred seven thousand, one hundred forty-two".