23290245 has 24 divisors (see below), whose sum is σ = 44040672. Its totient is φ = 11292000.

The previous prime is 23290243. The next prime is 23290249. The reversal of 23290245 is 54209232.

It is not a de Polignac number, because 23290245 - 2¹ = 23290243 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23290243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23031 + ... + 24020.

It is an arithmetic number, because the mean of its divisors is an integer number (1835028).

Almost surely, 2^23290245 is an apocalyptic number.

It is an amenable number.

23290245 is a deficient number, since it is larger than the sum of its proper divisors (20750427).

23290245 is a wasteful number, since it uses less digits than its factorization.

23290245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47073 (or 47070 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 23290245 is about 4825.9967882293. The cubic root of 23290245 is about 285.5779591893.

Adding to 23290245 its reverse (54209232), we get a palindrome (77499477).

The spelling of 23290245 in words is "twenty-three million, two hundred ninety thousand, two hundred forty-five".