2291393769 has 16 divisors (see below), whose sum is σ = 3543763968. Its totient is φ = 1289824272.

The previous prime is 2291393717. The next prime is 2291393771. The reversal of 2291393769 is 9673931922.

It is not a de Polignac number, because 2291393769 - 2⁸ = 2291393513 is a prime.

It is a super-2 number, since 2×2291393769² = 10500970809224050722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2291393779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812877 + ... + 815690.

It is an arithmetic number, because the mean of its divisors is an integer number (221485248).

Almost surely, 2^2291393769 is an apocalyptic number.

It is an amenable number.

2291393769 is a deficient number, since it is larger than the sum of its proper divisors (1252370199).

2291393769 is a wasteful number, since it uses less digits than its factorization.

2291393769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628644.

The product of its digits is 1102248, while the sum is 51.

The square root of 2291393769 is about 47868.5049797881. The cubic root of 2291393769 is about 1318.3576469292.

The spelling of 2291393769 in words is "two billion, two hundred ninety-one million, three hundred ninety-three thousand, seven hundred sixty-nine".