22840019 has 2 divisors, whose sum is σ = 22840020. Its totient is φ = 22840018.

The previous prime is 22840007. The next prime is 22840031. The reversal of 22840019 is 91004822.

It is a balanced prime because it is at equal distance from previous prime (22840007) and next prime (22840031).

It is a cyclic number.

It is not a de Polignac number, because 22840019 - 2²⁴ = 6062803 is a prime.

It is a super-2 number, since 2×22840019² = 1043332935840722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22840019.

It is not a weakly prime, because it can be changed into another prime (22840079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11420009 + 11420010.

It is an arithmetic number, because the mean of its divisors is an integer number (11420010).

Almost surely, 2^22840019 is an apocalyptic number.

22840019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22840019 is an equidigital number, since it uses as much as digits as its factorization.

22840019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22840019 is about 4779.1232459521. The cubic root of 22840019 is about 283.7257941534.

The spelling of 22840019 in words is "twenty-two million, eight hundred forty thousand, nineteen".