22047389 has 8 divisors (see below), whose sum is σ = 27135360. Its totient is φ = 17444016.

The previous prime is 22047383. The next prime is 22047397. The reversal of 22047389 is 98374022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22047389 - 2²⁴ = 5270173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22047383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121049 + ... + 121230.

It is an arithmetic number, because the mean of its divisors is an integer number (3391920).

Almost surely, 2^22047389 is an apocalyptic number.

It is an amenable number.

22047389 is a deficient number, since it is larger than the sum of its proper divisors (5087971).

22047389 is a wasteful number, since it uses less digits than its factorization.

22047389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242299.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 22047389 is about 4695.4647267337. The cubic root of 22047389 is about 280.4049794497.

The spelling of 22047389 in words is "twenty-two million, forty-seven thousand, three hundred eighty-nine".