22380945 has 8 divisors (see below), whose sum is σ = 35809536. Its totient is φ = 11936496.

The previous prime is 22380931. The next prime is 22380979. The reversal of 22380945 is 54908322.

It is a happy number.

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

It is not a de Polignac number, because 22380945 - 2⁴ = 22380929 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 746017 + ... + 746046.

It is an arithmetic number, because the mean of its divisors is an integer number (4476192).

Almost surely, 2^22380945 is an apocalyptic number.

It is an amenable number.

22380945 is a deficient number, since it is larger than the sum of its proper divisors (13428591).

22380945 is a wasteful number, since it uses less digits than its factorization.

22380945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492071.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 22380945 is about 4730.8503463965. The cubic root of 22380945 is about 281.8119942986.

The spelling of 22380945 in words is "twenty-two million, three hundred eighty thousand, nine hundred forty-five".