1722370225 has 12 divisors (see below), whose sum is σ = 2181181824. Its totient is φ = 1348578320.

The previous prime is 1722370207. The next prime is 1722370231. The reversal of 1722370225 is 5220732271.

It is not a de Polignac number, because 1722370225 - 2⁵ = 1722370193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731749 + ... + 734098.

It is an arithmetic number, because the mean of its divisors is an integer number (181765152).

Almost surely, 2^1722370225 is an apocalyptic number.

It is an amenable number.

1722370225 is a deficient number, since it is larger than the sum of its proper divisors (458811599).

1722370225 is a wasteful number, since it uses less digits than its factorization.

1722370225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465904 (or 1465899 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 1722370225 is about 41501.4484686981. The cubic root of 1722370225 is about 1198.6953935249.

The spelling of 1722370225 in words is "one billion, seven hundred twenty-two million, three hundred seventy thousand, two hundred twenty-five".