1722449125 has 32 divisors (see below), whose sum is σ = 2227230720. Its totient is φ = 1328544000.

The previous prime is 1722449119. The next prime is 1722449143. The reversal of 1722449125 is 5219442271.

It is not a de Polignac number, because 1722449125 - 2¹³ = 1722440933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1305216 + ... + 1306534.

It is an arithmetic number, because the mean of its divisors is an integer number (69600960).

Almost surely, 2^1722449125 is an apocalyptic number.

It is an amenable number.

1722449125 is a deficient number, since it is larger than the sum of its proper divisors (504781595).

1722449125 is a wasteful number, since it uses less digits than its factorization.

1722449125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1692 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 1722449125 is about 41502.3990270442. The cubic root of 1722449125 is about 1198.7136969111.

The spelling of 1722449125 in words is "one billion, seven hundred twenty-two million, four hundred forty-nine thousand, one hundred twenty-five".