20448411 has 4 divisors (see below), whose sum is σ = 27264552. Its totient is φ = 13632272.

The previous prime is 20448409. The next prime is 20448413. The reversal of 20448411 is 11484402.

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

It is an interprime number because it is at equal distance from previous prime (20448409) and next prime (20448413).

It is a cyclic number.

It is not a de Polignac number, because 20448411 - 2¹ = 20448409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20448413) 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, 3408066 + ... + 3408071.

It is an arithmetic number, because the mean of its divisors is an integer number (6816138).

Almost surely, 2^20448411 is an apocalyptic number.

20448411 is a deficient number, since it is larger than the sum of its proper divisors (6816141).

20448411 is an equidigital number, since it uses as much as digits as its factorization.

20448411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816140.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 20448411 is about 4521.9919283431. The cubic root of 20448411 is about 273.4554112958.

The spelling of 20448411 in words is "twenty million, four hundred forty-eight thousand, four hundred eleven".