22233418 has 4 divisors (see below), whose sum is σ = 33350130. Its totient is φ = 11116708.

The previous prime is 22233389. The next prime is 22233427. The reversal of 22233418 is 81433222.

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., 20857489 + 1375929 = 4567^2 + 1173^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22233392 and 22233401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5558353 + ... + 5558356.

Almost surely, 2^22233418 is an apocalyptic number.

22233418 is a deficient number, since it is larger than the sum of its proper divisors (11116712).

22233418 is a wasteful number, since it uses less digits than its factorization.

22233418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116711.

The product of its digits is 2304, while the sum is 25.

The square root of 22233418 is about 4715.2325499385. The cubic root of 22233418 is about 281.1914282639.

The spelling of 22233418 in words is "twenty-two million, two hundred thirty-three thousand, four hundred eighteen".