20228384 has 24 divisors (see below), whose sum is σ = 43445808. Its totient is φ = 9194560.

The previous prime is 20228363. The next prime is 20228423. The reversal of 20228384 is 48382202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28382 + ... + 29085.

It is an arithmetic number, because the mean of its divisors is an integer number (1810242).

Almost surely, 2^20228384 is an apocalyptic number.

It is an amenable number.

20228384 is an abundant number, since it is smaller than the sum of its proper divisors (23217424).

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

20228384 is a wasteful number, since it uses less digits than its factorization.

20228384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57488 (or 57480 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 20228384 is about 4497.5975809314. The cubic root of 20228384 is about 272.4710695095.

The spelling of 20228384 in words is "twenty million, two hundred twenty-eight thousand, three hundred eighty-four".