20444811 has 8 divisors (see below), whose sum is σ = 27514944. Its totient is φ = 13502280.

The previous prime is 20444791. The next prime is 20444819. The reversal of 20444811 is 11844402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20444811 - 2¹⁸ = 20182667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20444819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31525 + ... + 32166.

It is an arithmetic number, because the mean of its divisors is an integer number (3439368).

Almost surely, 2^20444811 is an apocalyptic number.

20444811 is a deficient number, since it is larger than the sum of its proper divisors (7070133).

20444811 is a wasteful number, since it uses less digits than its factorization.

20444811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63801.

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

The square root of 20444811 is about 4521.5938561529. The cubic root of 20444811 is about 273.4393628238.

The spelling of 20444811 in words is "twenty million, four hundred forty-four thousand, eight hundred eleven".