22142355 has 16 divisors (see below), whose sum is σ = 35486880. Its totient is φ = 11789568.

The previous prime is 22142333. The next prime is 22142359. The reversal of 22142355 is 55324122.

It is a de Polignac number, because none of the positive numbers 2^k-22142355 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22142359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14781 + ... + 16209.

It is an arithmetic number, because the mean of its divisors is an integer number (2217930).

Almost surely, 2^22142355 is an apocalyptic number.

22142355 is a deficient number, since it is larger than the sum of its proper divisors (13344525).

22142355 is a wasteful number, since it uses less digits than its factorization.

22142355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470.

The product of its digits is 2400, while the sum is 24.

The square root of 22142355 is about 4705.5663846130. The cubic root of 22142355 is about 280.8070043342.

Adding to 22142355 its reverse (55324122), we get a palindrome (77466477).

The spelling of 22142355 in words is "twenty-two million, one hundred forty-two thousand, three hundred fifty-five".