20880241 has 4 divisors (see below), whose sum is σ = 21365872. Its totient is φ = 20394612.

The previous prime is 20880191. The next prime is 20880257. The reversal of 20880241 is 14208802.

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 a de Polignac number, because none of the positive numbers 2^k-20880241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20880271) 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, 242751 + ... + 242836.

It is an arithmetic number, because the mean of its divisors is an integer number (5341468).

Almost surely, 2^20880241 is an apocalyptic number.

It is an amenable number.

20880241 is a deficient number, since it is larger than the sum of its proper divisors (485631).

20880241 is an equidigital number, since it uses as much as digits as its factorization.

20880241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485630.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 20880241 is about 4569.4902341509. The cubic root of 20880241 is about 275.3669635448.

It can be divided in two parts, 2088024 and 1, that added together give a square (2088025 = 1445²).

The spelling of 20880241 in words is "twenty million, eight hundred eighty thousand, two hundred forty-one".