20055244 has 24 divisors (see below), whose sum is σ = 38864448. Its totient is φ = 8978640.

The previous prime is 20055239. The next prime is 20055247. The reversal of 20055244 is 44255002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20055247) 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, 454 + ... + 6349.

It is an arithmetic number, because the mean of its divisors is an integer number (1619352).

Almost surely, 2^20055244 is an apocalyptic number.

It is an amenable number.

20055244 is a deficient number, since it is larger than the sum of its proper divisors (18809204).

20055244 is a wasteful number, since it uses less digits than its factorization.

20055244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6885 (or 6883 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20055244 is about 4478.3081626882. The cubic root of 20055244 is about 271.6914573753.

It can be divided in two parts, 200552 and 44, that multiplied together give a palindrome (8824288).

The spelling of 20055244 in words is "twenty million, fifty-five thousand, two hundred forty-four".