20262849 has 4 divisors (see below), whose sum is σ = 27017136. Its totient is φ = 13508564.

The previous prime is 20262833. The next prime is 20262857. The reversal of 20262849 is 94826202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20262849 - 2⁴ = 20262833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20262049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3377139 + ... + 3377144.

It is an arithmetic number, because the mean of its divisors is an integer number (6754284).

Almost surely, 2^20262849 is an apocalyptic number.

It is an amenable number.

20262849 is a deficient number, since it is larger than the sum of its proper divisors (6754287).

20262849 is an equidigital number, since it uses as much as digits as its factorization.

20262849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754286.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 20262849 is about 4501.4274402683. The cubic root of 20262849 is about 272.6257265691.

The spelling of 20262849 in words is "twenty million, two hundred sixty-two thousand, eight hundred forty-nine".