1722994144 has 12 divisors (see below), whose sum is σ = 3392144784. Its totient is φ = 861497056.

The previous prime is 1722994109. The next prime is 1722994153. The reversal of 1722994144 is 4414992271.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1722994144.

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, 26921752 + ... + 26921815.

It is an arithmetic number, because the mean of its divisors is an integer number (282678732).

Almost surely, 2^1722994144 is an apocalyptic number.

It is an amenable number.

1722994144 is a deficient number, since it is larger than the sum of its proper divisors (1669150640).

1722994144 is an equidigital number, since it uses as much as digits as its factorization.

1722994144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53843577 (or 53843569 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1722994144 is about 41508.9646221151. The cubic root of 1722994144 is about 1198.8401162897.

The spelling of 1722994144 in words is "one billion, seven hundred twenty-two million, nine hundred ninety-four thousand, one hundred forty-four".