1828381215 has 16 divisors (see below), whose sum is σ = 2926439136. Its totient is φ = 974793600.

The previous prime is 1828381211. The next prime is 1828381277. The reversal of 1828381215 is 5121838281.

It is not a de Polignac number, because 1828381215 - 2² = 1828381211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828381211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26005 + ... + 65825.

It is an arithmetic number, because the mean of its divisors is an integer number (182902446).

Almost surely, 2^1828381215 is an apocalyptic number.

1828381215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1828381215 is a deficient number, since it is larger than the sum of its proper divisors (1098057921).

1828381215 is a wasteful number, since it uses less digits than its factorization.

1828381215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42890.

The product of its digits is 30720, while the sum is 39.

The square root of 1828381215 is about 42759.5745418497. The cubic root of 1828381215 is about 1222.8004321820.

The spelling of 1828381215 in words is "one billion, eight hundred twenty-eight million, three hundred eighty-one thousand, two hundred fifteen".