22404245 has 16 divisors (see below), whose sum is σ = 27708912. Its totient is φ = 17379840.

The previous prime is 22404241. The next prime is 22404281. The reversal of 22404245 is 54240422.

It can be written as a sum of positive squares in 8 ways, for example, as 69169 + 22335076 = 263^2 + 4726^2 .

It is not a de Polignac number, because 22404245 - 2² = 22404241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22404245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59879 + ... + 60251.

It is an arithmetic number, because the mean of its divisors is an integer number (1731807).

Almost surely, 2^22404245 is an apocalyptic number.

It is an amenable number.

22404245 is a deficient number, since it is larger than the sum of its proper divisors (5304667).

22404245 is a wasteful number, since it uses less digits than its factorization.

22404245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 22404245 is about 4733.3122652113. The cubic root of 22404245 is about 281.9097551716.

Adding to 22404245 its reverse (54240422), we get a palindrome (76644667).

The spelling of 22404245 in words is "twenty-two million, four hundred four thousand, two hundred forty-five".