22140345 has 8 divisors (see below), whose sum is σ = 35424576. Its totient is φ = 11808176.

The previous prime is 22140343. The next prime is 22140353. The reversal of 22140345 is 54304122.

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 22140345 - 2¹ = 22140343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22140343) 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, 737997 + ... + 738026.

It is an arithmetic number, because the mean of its divisors is an integer number (4428072).

Almost surely, 2^22140345 is an apocalyptic number.

It is an amenable number.

22140345 is a deficient number, since it is larger than the sum of its proper divisors (13284231).

22140345 is a wasteful number, since it uses less digits than its factorization.

22140345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476031.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22140345 is about 4705.3528029256. The cubic root of 22140345 is about 280.7985072079.

Adding to 22140345 its reverse (54304122), we get a palindrome (76444467).

The spelling of 22140345 in words is "twenty-two million, one hundred forty thousand, three hundred forty-five".