22283018 has 4 divisors (see below), whose sum is σ = 33424530. Its totient is φ = 11141508.

The previous prime is 22283011. The next prime is 22283047. The reversal of 22283018 is 81038222.

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., 18774889 + 3508129 = 4333^2 + 1873^2 .

It is not an unprimeable number, because it can be changed into a prime (22283011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5570753 + ... + 5570756.

Almost surely, 2^22283018 is an apocalyptic number.

22283018 is a deficient number, since it is larger than the sum of its proper divisors (11141512).

22283018 is a wasteful number, since it uses less digits than its factorization.

22283018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11141511.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 22283018 is about 4720.4891695671. The cubic root of 22283018 is about 281.4003740389.

The spelling of 22283018 in words is "twenty-two million, two hundred eighty-three thousand, eighteen".