20454411 has 4 divisors (see below), whose sum is σ = 27272552. Its totient is φ = 13636272.

The previous prime is 20454409. The next prime is 20454463. The reversal of 20454411 is 11445402.

It is a happy number.

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

It is not a de Polignac number, because 20454411 - 2¹ = 20454409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20454481) 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, 3409066 + ... + 3409071.

It is an arithmetic number, because the mean of its divisors is an integer number (6818138).

Almost surely, 2^20454411 is an apocalyptic number.

20454411 is a deficient number, since it is larger than the sum of its proper divisors (6818141).

20454411 is an equidigital number, since it uses as much as digits as its factorization.

20454411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818140.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 20454411 is about 4522.6553041327. The cubic root of 20454411 is about 273.4821545640.

Adding to 20454411 its reverse (11445402), we get a palindrome (31899813).

Subtracting from 20454411 its reverse (11445402), we obtain a palindrome (9009009).

It can be divided in two parts, 204 and 54411, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 20454411 in words is "twenty million, four hundred fifty-four thousand, four hundred eleven".