20464411 has 16 divisors (see below), whose sum is σ = 23804928. Its totient is φ = 17406400.

The previous prime is 20464391. The next prime is 20464417. The reversal of 20464411 is 11446402.

It is not a de Polignac number, because 20464411 - 2¹¹ = 20462363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20464417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11031 + ... + 12751.

It is an arithmetic number, because the mean of its divisors is an integer number (1487808).

Almost surely, 2^20464411 is an apocalyptic number.

20464411 is a deficient number, since it is larger than the sum of its proper divisors (3340517).

20464411 is a wasteful number, since it uses less digits than its factorization.

20464411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20464411 is about 4523.7607142730. The cubic root of 20464411 is about 273.5267150582.

Subtracting from 20464411 its reverse (11446402), we obtain a square (9018009 = 3003²).

The spelling of 20464411 in words is "twenty million, four hundred sixty-four thousand, four hundred eleven".