20240889 has 4 divisors (see below), whose sum is σ = 26987856. Its totient is φ = 13493924.

The previous prime is 20240873. The next prime is 20240903. The reversal of 20240889 is 98804202.

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 20240889 - 2⁴ = 20240873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20240819) 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, 3373479 + ... + 3373484.

It is an arithmetic number, because the mean of its divisors is an integer number (6746964).

Almost surely, 2^20240889 is an apocalyptic number.

It is an amenable number.

20240889 is a deficient number, since it is larger than the sum of its proper divisors (6746967).

20240889 is an equidigital number, since it uses as much as digits as its factorization.

20240889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6746966.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 20240889 is about 4498.9875527723. The cubic root of 20240889 is about 272.5272043093.

The spelling of 20240889 in words is "twenty million, two hundred forty thousand, eight hundred eighty-nine".