1722663552 has 128 divisors (see below), whose sum is σ = 4825497600. Its totient is φ = 543697920.

The previous prime is 1722663541. The next prime is 1722663559. The reversal of 1722663552 is 2553662271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (39) 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 1722663552.

It is not an unprimeable number, because it can be changed into a prime (1722663559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557949 + ... + 561027.

It is an arithmetic number, because the mean of its divisors is an integer number (37699200).

Almost surely, 2^1722663552 is an apocalyptic number.

1722663552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1722663552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412748800).

1722663552 is an abundant number, since it is smaller than the sum of its proper divisors (3102834048).

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

1722663552 is a wasteful number, since it uses less digits than its factorization.

1722663552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174 (or 3162 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 1722663552 is about 41504.9822551462. The cubic root of 1722663552 is about 1198.7634373094.

The spelling of 1722663552 in words is "one billion, seven hundred twenty-two million, six hundred sixty-three thousand, five hundred fifty-two".