22828018 has 4 divisors (see below), whose sum is σ = 34242030. Its totient is φ = 11414008.

The previous prime is 22828007. The next prime is 22828019. The reversal of 22828018 is 81082822.

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., 14493249 + 8334769 = 3807^2 + 2887^2 .

It is a super-2 number, since 2×22828018² = 1042236811616648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22828019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5707003 + ... + 5707006.

Almost surely, 2^22828018 is an apocalyptic number.

22828018 is a deficient number, since it is larger than the sum of its proper divisors (11414012).

22828018 is a wasteful number, since it uses less digits than its factorization.

22828018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11414011.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 22828018 is about 4777.8675159531. The cubic root of 22828018 is about 283.6760920669.

The spelling of 22828018 in words is "twenty-two million, eight hundred twenty-eight thousand, eighteen".