2189840799 has 8 divisors (see below), whose sum is σ = 2926292400. Its totient is φ = 1456641536.

The previous prime is 2189840789. The next prime is 2189840813. The reversal of 2189840799 is 9970489812.

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 2189840799 - 2⁵ = 2189840767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189840749) 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, 811512 + ... + 814205.

It is an arithmetic number, because the mean of its divisors is an integer number (365786550).

Almost surely, 2^2189840799 is an apocalyptic number.

2189840799 is a deficient number, since it is larger than the sum of its proper divisors (736451601).

2189840799 is a wasteful number, since it uses less digits than its factorization.

2189840799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626169.

The product of its (nonzero) digits is 2612736, while the sum is 57.

The square root of 2189840799 is about 46795.7348376965. The cubic root of 2189840799 is about 1298.5863922102.

The spelling of 2189840799 in words is "two billion, one hundred eighty-nine million, eight hundred forty thousand, seven hundred ninety-nine".