22140994 has 12 divisors (see below), whose sum is σ = 33612786. Its totient is φ = 10937472.

The previous prime is 22140977. The next prime is 22141013. The reversal of 22140994 is 49904122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 471969 + 21669025 = 687^2 + 4655^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70582 + ... + 70894.

Almost surely, 2^22140994 is an apocalyptic number.

22140994 is a deficient number, since it is larger than the sum of its proper divisors (11471792).

22140994 is an equidigital number, since it uses as much as digits as its factorization.

22140994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22140994 is about 4705.4217664307. The cubic root of 22140994 is about 280.8012508636.

The spelling of 22140994 in words is "twenty-two million, one hundred forty thousand, nine hundred ninety-four".