1768328180 has 18 divisors (see below), whose sum is σ = 3713884146. Its totient is φ = 707256048.

The previous prime is 1768328167. The next prime is 1768328183. The reversal of 1768328180 is 818238671.

It can be written as a sum of positive squares in only one way, i.e., 1414662544 + 353665636 = 37612^2 + 18806^2 .

It is a super-2 number, since 2×1768328180² = 6253969104364224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768328183) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 183359 + ... + 192761.

It is an arithmetic number, because the mean of its divisors is an integer number (206326897).

Almost surely, 2^1768328180 is an apocalyptic number.

1768328180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1768328180 is an abundant number, since it is smaller than the sum of its proper divisors (1945555966).

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

1768328180 is an frugal number, since it uses more digits than its factorization.

1768328180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18815 (or 9410 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1768328180 is about 42051.4943848610. The cubic root of 1768328180 is about 1209.2635319858.

The spelling of 1768328180 in words is "one billion, seven hundred sixty-eight million, three hundred twenty-eight thousand, one hundred eighty".