22143345 has 48 divisors (see below), whose sum is σ = 42156288. Its totient is φ = 9891840.

The previous prime is 22143343. The next prime is 22143361. The reversal of 22143345 is 54334122.

It is not a de Polignac number, because 22143345 - 2¹ = 22143343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22143343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34225 + ... + 34865.

It is an arithmetic number, because the mean of its divisors is an integer number (878256).

Almost surely, 2^22143345 is an apocalyptic number.

It is an amenable number.

22143345 is a deficient number, since it is larger than the sum of its proper divisors (20012943).

22143345 is a wasteful number, since it uses less digits than its factorization.

22143345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 703 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 22143345 is about 4705.6715780003. The cubic root of 22143345 is about 280.8111892969.

Adding to 22143345 its reverse (54334122), we get a palindrome (76477467).

The spelling of 22143345 in words is "twenty-two million, one hundred forty-three thousand, three hundred forty-five".