22042305 has 24 divisors (see below), whose sum is σ = 38750400. Its totient is φ = 11588640.

The previous prime is 22042301. The next prime is 22042331. The reversal of 22042305 is 50324022.

It is not a de Polignac number, because 22042305 - 2² = 22042301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22042301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255 + ... + 6644.

It is an arithmetic number, because the mean of its divisors is an integer number (1614600).

Almost surely, 2^22042305 is an apocalyptic number.

It is an amenable number.

22042305 is a deficient number, since it is larger than the sum of its proper divisors (16708095).

22042305 is a wasteful number, since it uses less digits than its factorization.

22042305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981 (or 6978 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22042305 is about 4694.9233220576. The cubic root of 22042305 is about 280.3834245389.

Adding to 22042305 its reverse (50324022), we get a palindrome (72366327).

The spelling of 22042305 in words is "twenty-two million, forty-two thousand, three hundred five".