22745419 has 2 divisors, whose sum is σ = 22745420. Its totient is φ = 22745418.

The previous prime is 22745389. The next prime is 22745441. The reversal of 22745419 is 91454722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22745419 - 2⁷ = 22745291 is a prime.

It is a super-2 number, since 2×22745419² = 1034708170971122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22745479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11372709 + 11372710.

It is an arithmetic number, because the mean of its divisors is an integer number (11372710).

Almost surely, 2^22745419 is an apocalyptic number.

22745419 is a deficient number, since it is larger than the sum of its proper divisors (1).

22745419 is an equidigital number, since it uses as much as digits as its factorization.

22745419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 22745419 is about 4769.2157636240. The cubic root of 22745419 is about 283.3335352555. Note that the first 3 decimals are identical.

The spelling of 22745419 in words is "twenty-two million, seven hundred forty-five thousand, four hundred nineteen".