1722273130 has 16 divisors (see below), whose sum is σ = 3152636640. Its totient is φ = 677232592.

The previous prime is 1722273127. The next prime is 1722273181. The reversal of 1722273130 is 313722271.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458964 + ... + 1460143.

It is an arithmetic number, because the mean of its divisors is an integer number (197039790).

Almost surely, 2^1722273130 is an apocalyptic number.

1722273130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1722273130 is a deficient number, since it is larger than the sum of its proper divisors (1430363510).

1722273130 is a wasteful number, since it uses less digits than its factorization.

1722273130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919173.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 1722273130 is about 41500.2786737631. The cubic root of 1722273130 is about 1198.6728684574.

The spelling of 1722273130 in words is "one billion, seven hundred twenty-two million, two hundred seventy-three thousand, one hundred thirty".