1722167252 has 48 divisors (see below), whose sum is σ = 3456713232. Its totient is φ = 743700480.

The previous prime is 1722167221. The next prime is 1722167281. The reversal of 1722167252 is 2527612271.

It can be written as a sum of positive squares in 8 ways, for example, as 452242756 + 1269924496 = 21266^2 + 35636^2 .

It is a super-2 number, since 2×1722167252² = 5931720087722463008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147302 + ... + 158562.

It is an arithmetic number, because the mean of its divisors is an integer number (72014859).

Almost surely, 2^1722167252 is an apocalyptic number.

It is an amenable number.

1722167252 is an abundant number, since it is smaller than the sum of its proper divisors (1734545980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1722167252 is a wasteful number, since it uses less digits than its factorization.

1722167252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11468 (or 11466 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 1722167252 is about 41499.0030241691. The cubic root of 1722167252 is about 1198.6483048571.

The spelling of 1722167252 in words is "one billion, seven hundred twenty-two million, one hundred sixty-seven thousand, two hundred fifty-two".