23018716 has 24 divisors (see below), whose sum is σ = 46795616. Its totient is φ = 9702720.

The previous prime is 23018711. The next prime is 23018741. The reversal of 23018716 is 61781032.

It is a super-2 number, since 2×23018716² = 1059722572577312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23018711) 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, 5031 + ... + 8446.

Almost surely, 2^23018716 is an apocalyptic number.

It is an amenable number.

23018716 is an abundant number, since it is smaller than the sum of its proper divisors (23776900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23018716 is a wasteful number, since it uses less digits than its factorization.

23018716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13549 (or 13547 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 23018716 is about 4797.7824044031. The cubic root of 23018716 is about 284.4638159324.

Adding to 23018716 its reverse (61781032), we get a palindrome (84799748).

The spelling of 23018716 in words is "twenty-three million, eighteen thousand, seven hundred sixteen".