2191032386 has 32 divisors (see below), whose sum is σ = 3672864000. Its totient is φ = 974184192.

The previous prime is 2191032317. The next prime is 2191032391. The reversal of 2191032386 is 6832301912.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246935 + ... + 255653.

It is an arithmetic number, because the mean of its divisors is an integer number (114777000).

Almost surely, 2^2191032386 is an apocalyptic number.

2191032386 is a deficient number, since it is larger than the sum of its proper divisors (1481831614).

2191032386 is a wasteful number, since it uses less digits than its factorization.

2191032386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2191032386 is about 46808.4648968539. The cubic root of 2191032386 is about 1298.8218884897.

The spelling of 2191032386 in words is "two billion, one hundred ninety-one million, thirty-two thousand, three hundred eighty-six".