23040732 has 96 divisors (see below), whose sum is σ = 65479680. Its totient is φ = 6209280.

The previous prime is 23040713. The next prime is 23040767. The reversal of 23040732 is 23704032.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23040699 and 23040708.

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, 49533 + ... + 49995.

It is an arithmetic number, because the mean of its divisors is an integer number (682080).

Almost surely, 2^23040732 is an apocalyptic number.

23040732 is a gapful number since it is divisible by the number (22) 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 23040732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32739840).

23040732 is an abundant number, since it is smaller than the sum of its proper divisors (42438948).

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

23040732 is a wasteful number, since it uses less digits than its factorization.

23040732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 23040732 is about 4800.0762493944. The cubic root of 23040732 is about 284.5544778063.

Adding to 23040732 its reverse (23704032), we get a palindrome (46744764).

The spelling of 23040732 in words is "twenty-three million, forty thousand, seven hundred thirty-two".