722542407 has 8 divisors (see below), whose sum is σ = 968713200. Its totient is φ = 479033280.

The previous prime is 722542391. The next prime is 722542411. The reversal of 722542407 is 704245227.

It is a happy number.

722542407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 722542407 - 2⁴ = 722542391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722542477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664782 + ... + 665867.

It is an arithmetic number, because the mean of its divisors is an integer number (121089150).

Almost surely, 2^722542407 is an apocalyptic number.

722542407 is a deficient number, since it is larger than the sum of its proper divisors (246170793).

722542407 is a wasteful number, since it uses less digits than its factorization.

722542407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330833.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 722542407 is about 26880.1489393195. The cubic root of 722542407 is about 897.3346687902.

The spelling of 722542407 in words is "seven hundred twenty-two million, five hundred forty-two thousand, four hundred seven".