22401349 has 2 divisors, whose sum is σ = 22401350. Its totient is φ = 22401348.

The previous prime is 22401341. The next prime is 22401371. The reversal of 22401349 is 94310422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20205025 + 2196324 = 4495^2 + 1482^2 .

It is a cyclic number.

It is not a de Polignac number, because 22401349 - 2³ = 22401341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22401341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11200674 + 11200675.

It is an arithmetic number, because the mean of its divisors is an integer number (11200675).

Almost surely, 2^22401349 is an apocalyptic number.

It is an amenable number.

22401349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22401349 is an equidigital number, since it uses as much as digits as its factorization.

22401349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22401349 is about 4733.0063384703. The cubic root of 22401349 is about 281.8976079821.

The spelling of 22401349 in words is "twenty-two million, four hundred one thousand, three hundred forty-nine".