1722261364 has 48 divisors (see below), whose sum is σ = 3227300496. Its totient is φ = 801382400.

The previous prime is 1722261361. The next prime is 1722261379. The reversal of 1722261364 is 4631622271.

It can be written as a sum of positive squares in 8 ways, for example, as 222248464 + 1500012900 = 14908^2 + 38730^2 .

It is a super-3 number, since 3×1722261364³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1722261361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3305424 + ... + 3305944.

It is an arithmetic number, because the mean of its divisors is an integer number (67235427).

Almost surely, 2^1722261364 is an apocalyptic number.

It is an amenable number.

1722261364 is a deficient number, since it is larger than the sum of its proper divisors (1505039132).

1722261364 is a wasteful number, since it uses less digits than its factorization.

1722261364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 994 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 1722261364 is about 41500.1369154368. The cubic root of 1722261364 is about 1198.6701388058.

The spelling of 1722261364 in words is "one billion, seven hundred twenty-two million, two hundred sixty-one thousand, three hundred sixty-four".