1822738665 has 32 divisors (see below), whose sum is σ = 3185928576. Its totient is φ = 882524160.

The previous prime is 1822738649. The next prime is 1822738669. The reversal of 1822738665 is 5668372281.

It is not a de Polignac number, because 1822738665 - 2⁴ = 1822738649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1822738669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117609 + ... + 132201.

It is an arithmetic number, because the mean of its divisors is an integer number (99560268).

Almost surely, 2^1822738665 is an apocalyptic number.

1822738665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1822738665 is a deficient number, since it is larger than the sum of its proper divisors (1363189911).

1822738665 is a wasteful number, since it uses less digits than its factorization.

1822738665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15369.

The product of its digits is 967680, while the sum is 48.

The square root of 1822738665 is about 42693.5435985349. The cubic root of 1822738665 is about 1221.5412450153.

The spelling of 1822738665 in words is "one billion, eight hundred twenty-two million, seven hundred thirty-eight thousand, six hundred sixty-five".