1828653321 has 16 divisors (see below), whose sum is σ = 2663391168. Its totient is φ = 1106803200.

The previous prime is 1828653301. The next prime is 1828653361. The reversal of 1828653321 is 1233568281.

It is not a de Polignac number, because 1828653321 - 2⁵ = 1828653289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1828653321.

It is not an unprimeable number, because it can be changed into a prime (1828653301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11296 + ... + 61521.

It is an arithmetic number, because the mean of its divisors is an integer number (166461948).

Almost surely, 2^1828653321 is an apocalyptic number.

1828653321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1828653321 is a deficient number, since it is larger than the sum of its proper divisors (834737847).

1828653321 is a wasteful number, since it uses less digits than its factorization.

1828653321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73592.

The product of its digits is 69120, while the sum is 39.

The square root of 1828653321 is about 42762.7562371744. The cubic root of 1828653321 is about 1222.8610896326.

The spelling of 1828653321 in words is "one billion, eight hundred twenty-eight million, six hundred fifty-three thousand, three hundred twenty-one".