23228385 has 16 divisors (see below), whose sum is σ = 38030784. Its totient is φ = 12100032.

The previous prime is 23228383. The next prime is 23228437. The reversal of 23228385 is 58382232.

It is not a de Polignac number, because 23228385 - 2¹ = 23228383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23228383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17362 + ... + 18651.

It is an arithmetic number, because the mean of its divisors is an integer number (2376924).

Almost surely, 2^23228385 is an apocalyptic number.

It is an amenable number.

23228385 is a deficient number, since it is larger than the sum of its proper divisors (14802399).

23228385 is a wasteful number, since it uses less digits than its factorization.

23228385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36064.

The product of its digits is 23040, while the sum is 33.

The square root of 23228385 is about 4819.5834882280. The cubic root of 23228385 is about 285.3248987896.

The spelling of 23228385 in words is "twenty-three million, two hundred twenty-eight thousand, three hundred eighty-five".