20082291 has 4 divisors (see below), whose sum is σ = 26776392. Its totient is φ = 13388192.

The previous prime is 20082281. The next prime is 20082299. The reversal of 20082291 is 19228002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20082291 - 2⁷ = 20082163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20082299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3347046 + ... + 3347051.

It is an arithmetic number, because the mean of its divisors is an integer number (6694098).

Almost surely, 2^20082291 is an apocalyptic number.

20082291 is a deficient number, since it is larger than the sum of its proper divisors (6694101).

20082291 is an equidigital number, since it uses as much as digits as its factorization.

20082291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694100.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 20082291 is about 4481.3269240260. The cubic root of 20082291 is about 271.8135391259.

The spelling of 20082291 in words is "twenty million, eighty-two thousand, two hundred ninety-one".