20228252 has 24 divisors (see below), whose sum is σ = 39562992. Its totient is φ = 8969600.

The previous prime is 20228239. The next prime is 20228267. The reversal of 20228252 is 25282202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3803 + ... + 7410.

It is an arithmetic number, because the mean of its divisors is an integer number (1648458).

Almost surely, 2^20228252 is an apocalyptic number.

20228252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20228252 is a deficient number, since it is larger than the sum of its proper divisors (19334740).

20228252 is a wasteful number, since it uses less digits than its factorization.

20228252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269 (or 11267 counting only the distinct ones).

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

The square root of 20228252 is about 4497.5829064065. The cubic root of 20228252 is about 272.4704768397.

The spelling of 20228252 in words is "twenty million, two hundred twenty-eight thousand, two hundred fifty-two".