22047445 has 8 divisors (see below), whose sum is σ = 30236544. Its totient is φ = 15118224.

The previous prime is 22047439. The next prime is 22047451. The reversal of 22047445 is 54474022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22047439) and next prime (22047451).

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 22047445 - 2³ = 22047437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314929 + ... + 314998.

It is an arithmetic number, because the mean of its divisors is an integer number (3779568).

Almost surely, 2^22047445 is an apocalyptic number.

It is an amenable number.

22047445 is a deficient number, since it is larger than the sum of its proper divisors (8189099).

22047445 is an equidigital number, since it uses as much as digits as its factorization.

22047445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629939.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 22047445 is about 4695.4706899309. The cubic root of 22047445 is about 280.4052168575.

The spelling of 22047445 in words is "twenty-two million, forty-seven thousand, four hundred forty-five".