22049405 has 32 divisors (see below), whose sum is σ = 32348160. Its totient is φ = 14091840.

The previous prime is 22049389. The next prime is 22049407. The reversal of 22049405 is 50494022.

It is not a de Polignac number, because 22049405 - 2⁴ = 22049389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22049407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46982 + ... + 47448.

It is an arithmetic number, because the mean of its divisors is an integer number (1010880).

Almost surely, 2^22049405 is an apocalyptic number.

It is an amenable number.

22049405 is a deficient number, since it is larger than the sum of its proper divisors (10298755).

22049405 is a wasteful number, since it uses less digits than its factorization.

22049405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22049405 is about 4695.6793970628. The cubic root of 22049405 is about 280.4135258768.

The spelling of 22049405 in words is "twenty-two million, forty-nine thousand, four hundred five".