22072318 has 8 divisors (see below), whose sum is σ = 34548048. Its totient is φ = 10556304.

The previous prime is 22072289. The next prime is 22072331. The reversal of 22072318 is 81327022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22072292 and 22072301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239871 + ... + 239962.

It is an arithmetic number, because the mean of its divisors is an integer number (4318506).

Almost surely, 2^22072318 is an apocalyptic number.

22072318 is a deficient number, since it is larger than the sum of its proper divisors (12475730).

22072318 is a wasteful number, since it uses less digits than its factorization.

22072318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479858.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 22072318 is about 4698.1185595938. The cubic root of 22072318 is about 280.5106243520.

The spelling of 22072318 in words is "twenty-two million, seventy-two thousand, three hundred eighteen".