20441812 has 12 divisors (see below), whose sum is σ = 35823060. Its totient is φ = 10206656.

The previous prime is 20441809. The next prime is 20441831. The reversal of 20441812 is 21814402.

It can be written as a sum of positive squares in 2 ways, for example, as 14853316 + 5588496 = 3854^2 + 2364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78 + ... + 6394.

It is an arithmetic number, because the mean of its divisors is an integer number (2985255).

Almost surely, 2^20441812 is an apocalyptic number.

It is an amenable number.

20441812 is a deficient number, since it is larger than the sum of its proper divisors (15381248).

20441812 is a wasteful number, since it uses less digits than its factorization.

20441812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130 (or 7128 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 20441812 is about 4521.2622131436. The cubic root of 20441812 is about 273.4259921165.

The spelling of 20441812 in words is "twenty million, four hundred forty-one thousand, eight hundred twelve".