1722997492 has 6 divisors (see below), whose sum is σ = 3015245618. Its totient is φ = 861498744.

The previous prime is 1722997483. The next prime is 1722997513. The reversal of 1722997492 is 2947992271.

It can be written as a sum of positive squares in only one way, i.e., 1721752036 + 1245456 = 41494^2 + 1116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215374683 + ... + 215374690.

Almost surely, 2^1722997492 is an apocalyptic number.

It is an amenable number.

1722997492 is a deficient number, since it is larger than the sum of its proper divisors (1292248126).

1722997492 is a wasteful number, since it uses less digits than its factorization.

1722997492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430749377 (or 430749375 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 52.

The square root of 1722997492 is about 41509.0049507333. The cubic root of 1722997492 is about 1198.8408927896.

The spelling of 1722997492 in words is "one billion, seven hundred twenty-two million, nine hundred ninety-seven thousand, four hundred ninety-two".