23018964 has 12 divisors (see below), whose sum is σ = 53710944. Its totient is φ = 7672984.

The previous prime is 23018923. The next prime is 23018987. The reversal of 23018964 is 46981032.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959112 + ... + 959135.

It is an arithmetic number, because the mean of its divisors is an integer number (4475912).

Almost surely, 2^23018964 is an apocalyptic number.

It is an amenable number.

23018964 is an abundant number, since it is smaller than the sum of its proper divisors (30691980).

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

23018964 is a wasteful number, since it uses less digits than its factorization.

23018964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918254 (or 1918252 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 23018964 is about 4797.8082496073. The cubic root of 23018964 is about 284.4648375181.

Adding to 23018964 its reverse (46981032), we get a palindrome (69999996).

The spelling of 23018964 in words is "twenty-three million, eighteen thousand, nine hundred sixty-four".