1838718324 has 18 divisors (see below), whose sum is σ = 4647871410. Its totient is φ = 612906096.

The previous prime is 1838718289. The next prime is 1838718341. The reversal of 1838718324 is 4238178381.

It can be written as a sum of positive squares in only one way, i.e., 1418878224 + 419840100 = 37668^2 + 20490^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1838718324.

It is a congruent number.

It is an unprimeable number.

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, 25537719 + ... + 25537790.

Almost surely, 2^1838718324 is an apocalyptic number.

It is an amenable number.

1838718324 is an abundant number, since it is smaller than the sum of its proper divisors (2809153086).

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

1838718324 is a wasteful number, since it uses less digits than its factorization.

1838718324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51075519 (or 51075514 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1838718324 is about 42880.2789636448. The cubic root of 1838718324 is about 1225.1005496252.

The spelling of 1838718324 in words is "one billion, eight hundred thirty-eight million, seven hundred eighteen thousand, three hundred twenty-four".