23611040 has 48 divisors (see below), whose sum is σ = 56169288. Its totient is φ = 9378816.

The previous prime is 23611031. The next prime is 23611043. The reversal of 23611040 is 4011632.

It can be written as a sum of positive squares in 4 ways, for example, as 18284176 + 5326864 = 4276^2 + 2308^2 .

It is not an unprimeable number, because it can be changed into a prime (23611043) 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, 27254 + ... + 28106.

Almost surely, 2^23611040 is an apocalyptic number.

23611040 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 23611040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28084644).

23611040 is an abundant number, since it is smaller than the sum of its proper divisors (32558248).

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

23611040 is a wasteful number, since it uses less digits than its factorization.

23611040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 23611040 is about 4859.1192617593. The cubic root of 23611040 is about 286.8831487790.

Adding to 23611040 its reverse (4011632), we get a palindrome (27622672).

The spelling of 23611040 in words is "twenty-three million, six hundred eleven thousand, forty".