20444029 has 4 divisors (see below), whose sum is σ = 20454784. Its totient is φ = 20433276.

The previous prime is 20444027. The next prime is 20444059. The reversal of 20444029 is 92044402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20444029 - 2¹ = 20444027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20443994 and 20444012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444023) 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, 1677 + ... + 6610.

It is an arithmetic number, because the mean of its divisors is an integer number (5113696).

Almost surely, 2^20444029 is an apocalyptic number.

It is an amenable number.

20444029 is a deficient number, since it is larger than the sum of its proper divisors (10755).

20444029 is an equidigital number, since it uses as much as digits as its factorization.

20444029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10754.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20444029 is about 4521.5073813940. The cubic root of 20444029 is about 273.4358764900.

The spelling of 20444029 in words is "twenty million, four hundred forty-four thousand, twenty-nine".