20444120 has 32 divisors (see below), whose sum is σ = 46342800. Its totient is φ = 8116608.

The previous prime is 20444113. The next prime is 20444147. The reversal of 20444120 is 2144402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3722 + ... + 7398.

Almost surely, 2^20444120 is an apocalyptic number.

20444120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20444120 is an abundant number, since it is smaller than the sum of its proper divisors (25898680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20444120 is a wasteful number, since it uses less digits than its factorization.

20444120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827 (or 3823 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 20444120 is about 4521.5174443985. The cubic root of 20444120 is about 273.4362821932.

Adding to 20444120 its reverse (2144402), we get a palindrome (22588522).

The spelling of 20444120 in words is "twenty million, four hundred forty-four thousand, one hundred twenty".