1888222449 has 8 divisors (see below), whose sum is σ = 2518356672. Its totient is φ = 1258451600.

The previous prime is 1888222423. The next prime is 1888222463. The reversal of 1888222449 is 9442228881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1888222449 - 2¹¹ = 1888220401 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1888222398 and 1888222407.

It is not an unprimeable number, because it can be changed into a prime (1888222409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78477 + ... + 99674.

It is an arithmetic number, because the mean of its divisors is an integer number (314794584).

Almost surely, 2^1888222449 is an apocalyptic number.

It is an amenable number.

1888222449 is a deficient number, since it is larger than the sum of its proper divisors (630134223).

1888222449 is a wasteful number, since it uses less digits than its factorization.

1888222449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181687.

The product of its digits is 589824, while the sum is 48.

The square root of 1888222449 is about 43453.6816506956. The cubic root of 1888222449 is about 1235.9978601727.

It can be divided in two parts, 188822 and 2449, that added together give a triangular number (191271 = T₆₁₈).

The spelling of 1888222449 in words is "one billion, eight hundred eighty-eight million, two hundred twenty-two thousand, four hundred forty-nine".