2128190398 has 16 divisors (see below), whose sum is σ = 3212576640. Its totient is φ = 1057341600.

The previous prime is 2128190381. The next prime is 2128190417. The reversal of 2128190398 is 8930918212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820083 + ... + 822673.

It is an arithmetic number, because the mean of its divisors is an integer number (200786040).

Almost surely, 2^2128190398 is an apocalyptic number.

2128190398 is a deficient number, since it is larger than the sum of its proper divisors (1084386242).

2128190398 is a wasteful number, since it uses less digits than its factorization.

2128190398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 2128190398 is about 46132.3140325737. The cubic root of 2128190398 is about 1286.2838784374.

The spelling of 2128190398 in words is "two billion, one hundred twenty-eight million, one hundred ninety thousand, three hundred ninety-eight".