22642345 has 8 divisors (see below), whose sum is σ = 29640960. Its totient is φ = 16467120.

The previous prime is 22642343. The next prime is 22642349. The reversal of 22642345 is 54324622.

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

It is not a de Polignac number, because 22642345 - 2¹ = 22642343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22642343) 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, 205785 + ... + 205894.

It is an arithmetic number, because the mean of its divisors is an integer number (3705120).

Almost surely, 2^22642345 is an apocalyptic number.

It is an amenable number.

22642345 is a deficient number, since it is larger than the sum of its proper divisors (6998615).

22642345 is a wasteful number, since it uses less digits than its factorization.

22642345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411695.

The product of its digits is 11520, while the sum is 28.

The square root of 22642345 is about 4758.3973142225. The cubic root of 22642345 is about 282.9048988097.

Adding to 22642345 its reverse (54324622), we get a palindrome (76966967).

The spelling of 22642345 in words is "twenty-two million, six hundred forty-two thousand, three hundred forty-five".