2169872398 has 8 divisors (see below), whose sum is σ = 3276653400. Its totient is φ = 1077654600.

The previous prime is 2169872377. The next prime is 2169872399. The reversal of 2169872398 is 8932789612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169872399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3640428 + ... + 3641023.

It is an arithmetic number, because the mean of its divisors is an integer number (409581675).

Almost surely, 2^2169872398 is an apocalyptic number.

2169872398 is a deficient number, since it is larger than the sum of its proper divisors (1106781002).

2169872398 is a wasteful number, since it uses less digits than its factorization.

2169872398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7281602.

The product of its digits is 2612736, while the sum is 55.

The square root of 2169872398 is about 46581.8891630642. The cubic root of 2169872398 is about 1294.6272134989.

The spelling of 2169872398 in words is "two billion, one hundred sixty-nine million, eight hundred seventy-two thousand, three hundred ninety-eight".