23018345 has 16 divisors (see below), whose sum is σ = 31656960. Its totient is φ = 15739584.

The previous prime is 23018341. The next prime is 23018353. The reversal of 23018345 is 54381032.

It is not a de Polignac number, because 23018345 - 2² = 23018341 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23018341) 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, 16079 + ... + 17451.

It is an arithmetic number, because the mean of its divisors is an integer number (1978560).

Almost surely, 2^23018345 is an apocalyptic number.

It is an amenable number.

23018345 is a deficient number, since it is larger than the sum of its proper divisors (8638615).

23018345 is a wasteful number, since it uses less digits than its factorization.

23018345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 23018345 is about 4797.7437405514. The cubic root of 23018345 is about 284.4622876595.

Adding to 23018345 its reverse (54381032), we get a palindrome (77399377).

The spelling of 23018345 in words is "twenty-three million, eighteen thousand, three hundred forty-five".