2191792 has 10 divisors (see below), whose sum is σ = 4246628. Its totient is φ = 1095888.

The previous prime is 2191727. The next prime is 2191799. The reversal of 2191792 is 2971912.

It is not an unprimeable number, because it can be changed into a prime (2191799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68478 + ... + 68509.

2^2191792 is an apocalyptic number.

It is an amenable number.

2191792 is a deficient number, since it is larger than the sum of its proper divisors (2054836).

2191792 is a wasteful number, since it uses less digits than its factorization.

2191792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136995 (or 136989 counting only the distinct ones).

The product of its digits is 2268, while the sum is 31.

The square root of 2191792 is about 1480.4701955798. The cubic root of 2191792 is about 129.8971968319.

The spelling of 2191792 in words is "two million, one hundred ninety-one thousand, seven hundred ninety-two".