22940012 has 6 divisors (see below), whose sum is σ = 40145028. Its totient is φ = 11470004.

The previous prime is 22940009. The next prime is 22940053. The reversal of 22940012 is 21004922.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2867498 + ... + 2867505.

It is an arithmetic number, because the mean of its divisors is an integer number (6690838).

Almost surely, 2^22940012 is an apocalyptic number.

It is an amenable number.

22940012 is a deficient number, since it is larger than the sum of its proper divisors (17205016).

22940012 is a wasteful number, since it uses less digits than its factorization.

22940012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735007 (or 5735005 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22940012 is about 4789.5732586526. The cubic root of 22940012 is about 284.1392393997.

Adding to 22940012 its reverse (21004922), we get a palindrome (43944934).

The spelling of 22940012 in words is "twenty-two million, nine hundred forty thousand, twelve".