22040268 has 12 divisors (see below), whose sum is σ = 51427320. Its totient is φ = 7346752.

The previous prime is 22040267. The next prime is 22040269. The reversal of 22040268 is 86204022.

It is an interprime number because it is at equal distance from previous prime (22040267) and next prime (22040269).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (22040267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918333 + ... + 918356.

It is an arithmetic number, because the mean of its divisors is an integer number (4285610).

Almost surely, 2^22040268 is an apocalyptic number.

It is an amenable number.

22040268 is an abundant number, since it is smaller than the sum of its proper divisors (29387052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22040268 is a wasteful number, since it uses less digits than its factorization.

22040268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836696 (or 1836694 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 22040268 is about 4694.7063805951. The cubic root of 22040268 is about 280.3747872294.

The spelling of 22040268 in words is "twenty-two million, forty thousand, two hundred sixty-eight".