22294399 has 2 divisors, whose sum is σ = 22294400. Its totient is φ = 22294398.

The previous prime is 22294379. The next prime is 22294439. The reversal of 22294399 is 99349222.

It is a happy number.

It is an a-pointer prime, because the next prime (22294439) can be obtained adding 22294399 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22294399 - 2¹³ = 22286207 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22294369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11147199 + 11147200.

It is an arithmetic number, because the mean of its divisors is an integer number (11147200).

Almost surely, 2^22294399 is an apocalyptic number.

22294399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22294399 is an equidigital number, since it uses as much as digits as its factorization.

22294399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 22294399 is about 4721.6945051538. The cubic root of 22294399 is about 281.4482740820.

The spelling of 22294399 in words is "twenty-two million, two hundred ninety-four thousand, three hundred ninety-nine".