22140268 has 6 divisors (see below), whose sum is σ = 38745476. Its totient is φ = 11070132.

The previous prime is 22140247. The next prime is 22140269. The reversal of 22140268 is 86204122.

It is a happy number.

It is a super-2 number, since 2×22140268² = 980382934223648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22140269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2767530 + ... + 2767537.

Almost surely, 2^22140268 is an apocalyptic number.

It is an amenable number.

22140268 is a deficient number, since it is larger than the sum of its proper divisors (16605208).

22140268 is a wasteful number, since it uses less digits than its factorization.

22140268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535071 (or 5535069 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 22140268 is about 4705.3446207478. The cubic root of 22140268 is about 280.7981816859.

The spelling of 22140268 in words is "twenty-two million, one hundred forty thousand, two hundred sixty-eight".