22288027 has 2 divisors, whose sum is σ = 22288028. Its totient is φ = 22288026.

The previous prime is 22288009. The next prime is 22288031. The reversal of 22288027 is 72088222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22288027 is a prime.

It is a super-2 number, since 2×22288027² = 993512295105458, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22288027.

It is not a weakly prime, because it can be changed into another prime (22288727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11144013 + 11144014.

It is an arithmetic number, because the mean of its divisors is an integer number (11144014).

Almost surely, 2^22288027 is an apocalyptic number.

22288027 is a deficient number, since it is larger than the sum of its proper divisors (1).

22288027 is an equidigital number, since it uses as much as digits as its factorization.

22288027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 22288027 is about 4721.0196991752. The cubic root of 22288027 is about 281.4214577908.

The spelling of 22288027 in words is "twenty-two million, two hundred eighty-eight thousand, twenty-seven".