23726040 has 128 divisors (see below), whose sum is σ = 78140160. Its totient is φ = 5727744.

The previous prime is 23726039. The next prime is 23726051. The reversal of 23726040 is 4062732.

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 23726040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104407 + ... + 104633.

It is an arithmetic number, because the mean of its divisors is an integer number (610470).

Almost surely, 2^23726040 is an apocalyptic number.

23726040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23726040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39070080).

23726040 is an abundant number, since it is smaller than the sum of its proper divisors (54414120).

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

23726040 is a wasteful number, since it uses less digits than its factorization.

23726040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 23726040 is about 4870.9383079649. The cubic root of 23726040 is about 287.3481592662.

Adding to 23726040 its reverse (4062732), we get a palindrome (27788772).

The spelling of 23726040 in words is "twenty-three million, seven hundred twenty-six thousand, forty".