722257403 has 12 divisors (see below), whose sum is σ = 841127112. Its totient is φ = 618377760.

The previous prime is 722257397. The next prime is 722257411. The reversal of 722257403 is 304752227.

It is not a de Polignac number, because 722257403 - 2⁸ = 722257147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722257403.

It is not an unprimeable number, because it can be changed into a prime (722257453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38048 + ... + 53778.

It is an arithmetic number, because the mean of its divisors is an integer number (70093926).

Almost surely, 2^722257403 is an apocalyptic number.

722257403 is a deficient number, since it is larger than the sum of its proper divisors (118869709).

722257403 is a wasteful number, since it uses less digits than its factorization.

722257403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16682 (or 16675 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 722257403 is about 26874.8470321228. The cubic root of 722257403 is about 897.2166699016.

The spelling of 722257403 in words is "seven hundred twenty-two million, two hundred fifty-seven thousand, four hundred three".