23732730 has 128 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 5225472.

The previous prime is 23732719. The next prime is 23732743. The reversal of 23732730 is 3723732.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23732694 and 23732703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54594 + ... + 55026.

It is an arithmetic number, because the mean of its divisors is an integer number (585900).

Almost surely, 2^23732730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23732730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37497600).

23732730 is an abundant number, since it is smaller than the sum of its proper divisors (51262470).

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

23732730 is a wasteful number, since it uses less digits than its factorization.

23732730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 27.

The square root of 23732730 is about 4871.6249855669. The cubic root of 23732730 is about 287.3751644545.

The spelling of 23732730 in words is "twenty-three million, seven hundred thirty-two thousand, seven hundred thirty".