23618040 has 32 divisors (see below), whose sum is σ = 70854480. Its totient is φ = 6298112.

The previous prime is 23618029. The next prime is 23618047. The reversal of 23618040 is 4081632.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23618040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23618047) 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, 98289 + ... + 98528.

Almost surely, 2^23618040 is an apocalyptic number.

23618040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23618040 is an abundant number, since it is smaller than the sum of its proper divisors (47236440).

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

23618040 is a wasteful number, since it uses less digits than its factorization.

23618040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196831 (or 196827 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 23618040 is about 4859.8395035227. The cubic root of 23618040 is about 286.9114968684.

Adding to 23618040 its reverse (4081632), we get a palindrome (27699672).

It can be divided in two parts, 2361 and 8040, that added together give a palindrome (10401).

The spelling of 23618040 in words is "twenty-three million, six hundred eighteen thousand, forty".