22258345 has 8 divisors (see below), whose sum is σ = 26955720. Its totient is φ = 17642880.

The previous prime is 22258343. The next prime is 22258373. The reversal of 22258345 is 54385222.

It can be written as a sum of positive squares in 4 ways, for example, as 8620096 + 13638249 = 2936^2 + 3693^2 .

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

It is not a de Polignac number, because 22258345 - 2¹ = 22258343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22258343) 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, 19876 + ... + 20965.

It is an arithmetic number, because the mean of its divisors is an integer number (3369465).

Almost surely, 2^22258345 is an apocalyptic number.

It is an amenable number.

22258345 is a deficient number, since it is larger than the sum of its proper divisors (4697375).

22258345 is a wasteful number, since it uses less digits than its factorization.

22258345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40955.

The product of its digits is 19200, while the sum is 31.

The square root of 22258345 is about 4717.8750513340. The cubic root of 22258345 is about 281.2964749536.

The spelling of 22258345 in words is "twenty-two million, two hundred fifty-eight thousand, three hundred forty-five".