22041387 has 24 divisors (see below), whose sum is σ = 33767760. Its totient is φ = 13815360.

The previous prime is 22041379. The next prime is 22041427. The reversal of 22041387 is 78314022.

It is not a de Polignac number, because 22041387 - 2³ = 22041379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22041387.

It is not an unprimeable number, because it can be changed into a prime (22041317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26437 + ... + 27257.

It is an arithmetic number, because the mean of its divisors is an integer number (1406990).

Almost surely, 2^22041387 is an apocalyptic number.

22041387 is a deficient number, since it is larger than the sum of its proper divisors (11726373).

22041387 is a wasteful number, since it uses less digits than its factorization.

22041387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22041387 is about 4694.8255558647. The cubic root of 22041387 is about 280.3795320912.

The spelling of 22041387 in words is "twenty-two million, forty-one thousand, three hundred eighty-seven".