23418958 has 4 divisors (see below), whose sum is σ = 35128440. Its totient is φ = 11709478.

The previous prime is 23418949. The next prime is 23419021. The reversal of 23418958 is 85981432.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 23418958.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5854738 + ... + 5854741.

It is an arithmetic number, because the mean of its divisors is an integer number (8782110).

Almost surely, 2^23418958 is an apocalyptic number.

23418958 is a deficient number, since it is larger than the sum of its proper divisors (11709482).

23418958 is a wasteful number, since it uses less digits than its factorization.

23418958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11709481.

The product of its digits is 69120, while the sum is 40.

The square root of 23418958 is about 4839.3137943308. The cubic root of 23418958 is about 286.1030730251.

The spelling of 23418958 in words is "twenty-three million, four hundred eighteen thousand, nine hundred fifty-eight".