22024399 has 2 divisors, whose sum is σ = 22024400. Its totient is φ = 22024398.

The previous prime is 22024393. The next prime is 22024423. The reversal of 22024399 is 99342022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22024399 - 2⁹ = 22023887 is a prime.

It is a super-2 number, since 2×22024399² = 970148302622402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22024399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22024393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11012199 + 11012200.

It is an arithmetic number, because the mean of its divisors is an integer number (11012200).

Almost surely, 2^22024399 is an apocalyptic number.

22024399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22024399 is an equidigital number, since it uses as much as digits as its factorization.

22024399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 22024399 is about 4693.0159812215. The cubic root of 22024399 is about 280.3074810946.

The spelling of 22024399 in words is "twenty-two million, twenty-four thousand, three hundred ninety-nine".