2188022398 has 4 divisors (see below), whose sum is σ = 3282033600. Its totient is φ = 1094011198.

The previous prime is 2188022351. The next prime is 2188022413. The reversal of 2188022398 is 8932208812.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547005598 + ... + 547005601.

It is an arithmetic number, because the mean of its divisors is an integer number (820508400).

Almost surely, 2^2188022398 is an apocalyptic number.

2188022398 is a deficient number, since it is larger than the sum of its proper divisors (1094011202).

2188022398 is a wasteful number, since it uses less digits than its factorization.

2188022398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094011201.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 2188022398 is about 46776.3016708247. The cubic root of 2188022398 is about 1298.2268524203.

The spelling of 2188022398 in words is "two billion, one hundred eighty-eight million, twenty-two thousand, three hundred ninety-eight".