2688422399 has 8 divisors (see below), whose sum is σ = 2900374512. Its totient is φ = 2477206080.

The previous prime is 2688422383. The next prime is 2688422489. The reversal of 2688422399 is 9932248862.

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 2688422399 - 2⁴ = 2688422383 is a prime.

It is a super-2 number, since 2×2688422399² = 14455229990889830402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2688422399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688422329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 176342 + ... + 190979.

It is an arithmetic number, because the mean of its divisors is an integer number (362546814).

Almost surely, 2^2688422399 is an apocalyptic number.

2688422399 is a deficient number, since it is larger than the sum of its proper divisors (211952113).

2688422399 is a wasteful number, since it uses less digits than its factorization.

2688422399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367897.

The product of its digits is 2985984, while the sum is 53.

The square root of 2688422399 is about 51849.9990260366. Note that the first 3 decimals coincide. The cubic root of 2688422399 is about 1390.4834850020.

The spelling of 2688422399 in words is "two billion, six hundred eighty-eight million, four hundred twenty-two thousand, three hundred ninety-nine".