22049487 has 12 divisors (see below), whose sum is σ = 32372184. Its totient is φ = 14458320.

The previous prime is 22049437. The next prime is 22049491. The reversal of 22049487 is 78494022.

It is not a de Polignac number, because 22049487 - 2¹¹ = 22047439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22049407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19533 + ... + 20630.

It is an arithmetic number, because the mean of its divisors is an integer number (2697682).

Almost surely, 2^22049487 is an apocalyptic number.

22049487 is a deficient number, since it is larger than the sum of its proper divisors (10322697).

22049487 is a wasteful number, since it uses less digits than its factorization.

22049487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40230 (or 40227 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 22049487 is about 4695.6881284855. The cubic root of 22049487 is about 280.4138734883.

The spelling of 22049487 in words is "twenty-two million, forty-nine thousand, four hundred eighty-seven".