22049429 has 2 divisors, whose sum is σ = 22049430. Its totient is φ = 22049428.

The previous prime is 22049413. The next prime is 22049437. The reversal of 22049429 is 92494022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18447025 + 3602404 = 4295^2 + 1898^2 .

It is a cyclic number.

It is not a de Polignac number, because 22049429 - 2⁴ = 22049413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22049395 and 22049404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22040429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11024714 + 11024715.

It is an arithmetic number, because the mean of its divisors is an integer number (11024715).

Almost surely, 2^22049429 is an apocalyptic number.

It is an amenable number.

22049429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22049429 is an equidigital number, since it uses as much as digits as its factorization.

22049429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 22049429 is about 4695.6819526028. The cubic root of 22049429 is about 280.4136276168.

The spelling of 22049429 in words is "twenty-two million, forty-nine thousand, four hundred twenty-nine".