20228354 has 8 divisors (see below), whose sum is σ = 30497148. Its totient is φ = 10062640.

The previous prime is 20228333. The next prime is 20228357. The reversal of 20228354 is 45382202.

It can be written as a sum of positive squares in 2 ways, for example, as 15721225 + 4507129 = 3965^2 + 2123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20228357) 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, 25277 + ... + 26064.

Almost surely, 2^20228354 is an apocalyptic number.

20228354 is a deficient number, since it is larger than the sum of its proper divisors (10268794).

20228354 is a wasteful number, since it uses less digits than its factorization.

20228354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51540.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20228354 is about 4497.5942458163. The cubic root of 20228354 is about 272.4709348121.

The spelling of 20228354 in words is "twenty million, two hundred twenty-eight thousand, three hundred fifty-four".