22940005 has 16 divisors (see below), whose sum is σ = 30123648. Its totient is φ = 16632000.

The previous prime is 22940003. The next prime is 22940009. The reversal of 22940005 is 50004922.

It is a happy number.

It is not a de Polignac number, because 22940005 - 2¹ = 22940003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940003) 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, 34375 + ... + 35035.

It is an arithmetic number, because the mean of its divisors is an integer number (1882728).

Almost surely, 2^22940005 is an apocalyptic number.

It is an amenable number.

22940005 is a deficient number, since it is larger than the sum of its proper divisors (7183643).

22940005 is a wasteful number, since it uses less digits than its factorization.

22940005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 22940005 is about 4789.5725278985. The cubic root of 22940005 is about 284.1392104986.

Adding to 22940005 its reverse (50004922), we get a palindrome (72944927).

The spelling of 22940005 in words is "twenty-two million, nine hundred forty thousand, five".