22028282 has 4 divisors (see below), whose sum is σ = 33042426. Its totient is φ = 11014140.

The previous prime is 22028269. The next prime is 22028287. The reversal of 22028282 is 28282022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22005481 + 22801 = 4691^2 + 151^2 .

It is not an unprimeable number, because it can be changed into a prime (22028287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5507069 + ... + 5507072.

Almost surely, 2^22028282 is an apocalyptic number.

22028282 is a deficient number, since it is larger than the sum of its proper divisors (11014144).

22028282 is a wasteful number, since it uses less digits than its factorization.

22028282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11014143.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 22028282 is about 4693.4296628372. The cubic root of 22028282 is about 280.3239532806.

The spelling of 22028282 in words is "twenty-two million, twenty-eight thousand, two hundred eighty-two".