22454005 has 24 divisors (see below), whose sum is σ = 32204088. Its totient is φ = 14974848.

The previous prime is 22453999. The next prime is 22454009. The reversal of 22454005 is 50045422.

It can be written as a sum of positive squares in 4 ways, for example, as 6140484 + 16313521 = 2478^2 + 4039^2 .

It is not a de Polignac number, because 22454005 - 2⁹ = 22453493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22454009) 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, 7827 + ... + 10303.

It is an arithmetic number, because the mean of its divisors is an integer number (1341837).

Almost surely, 2^22454005 is an apocalyptic number.

It is an amenable number.

22454005 is a deficient number, since it is larger than the sum of its proper divisors (9750083).

22454005 is a wasteful number, since it uses less digits than its factorization.

22454005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2526 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 22454005 is about 4738.5657112675. The cubic root of 22454005 is about 282.1183087576.

Adding to 22454005 its reverse (50045422), we get a palindrome (72499427).

The spelling of 22454005 in words is "twenty-two million, four hundred fifty-four thousand, five".