20054228 has 12 divisors (see below), whose sum is σ = 35161812. Its totient is φ = 10008000.

The previous prime is 20054227. The next prime is 20054231. The reversal of 20054228 is 82245002.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 17455684 = 1612^2 + 4178^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054227) 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, 2273 + ... + 6728.

It is an arithmetic number, because the mean of its divisors is an integer number (2930151).

Almost surely, 2^20054228 is an apocalyptic number.

It is an amenable number.

20054228 is a deficient number, since it is larger than the sum of its proper divisors (15107584).

20054228 is a wasteful number, since it uses less digits than its factorization.

20054228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562 (or 9560 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 20054228 is about 4478.1947255563. The cubic root of 20054228 is about 271.6868693287.

The spelling of 20054228 in words is "twenty million, fifty-four thousand, two hundred twenty-eight".