22002345 has 48 divisors (see below), whose sum is σ = 39716352. Its totient is φ = 11260800.

The previous prime is 22002319. The next prime is 22002349. The reversal of 22002345 is 54320022.

It is not a de Polignac number, because 22002345 - 2⁷ = 22002217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22002349) 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, 213564 + ... + 213666.

It is an arithmetic number, because the mean of its divisors is an integer number (827424).

Almost surely, 2^22002345 is an apocalyptic number.

It is an amenable number.

22002345 is a deficient number, since it is larger than the sum of its proper divisors (17714007).

22002345 is a wasteful number, since it uses less digits than its factorization.

22002345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22002345 is about 4690.6657310024. The cubic root of 22002345 is about 280.2138884425.

Adding to 22002345 its reverse (54320022), we get a palindrome (76322367).

The spelling of 22002345 in words is "twenty-two million, two thousand, three hundred forty-five".