1828068644 has 6 divisors (see below), whose sum is σ = 3199120134. Its totient is φ = 914034320.

The previous prime is 1828068643. The next prime is 1828068653. The reversal of 1828068644 is 4468608281.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1365302500 + 462766144 = 36950^2 + 21512^2 .

It is not an unprimeable number, because it can be changed into a prime (1828068643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228508577 + ... + 228508584.

It is an arithmetic number, because the mean of its divisors is an integer number (533186689).

Almost surely, 2^1828068644 is an apocalyptic number.

It is an amenable number.

1828068644 is a deficient number, since it is larger than the sum of its proper divisors (1371051490).

1828068644 is a wasteful number, since it uses less digits than its factorization.

1828068644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457017165 (or 457017163 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 47.

The square root of 1828068644 is about 42755.9194030487. The cubic root of 1828068644 is about 1222.7307469083.

The spelling of 1828068644 in words is "one billion, eight hundred twenty-eight million, sixty-eight thousand, six hundred forty-four".