23303140 has 48 divisors (see below), whose sum is σ = 58367232. Its totient is φ = 7641216.

The previous prime is 23303113. The next prime is 23303149. The reversal of 23303140 is 4130332.

It is not an unprimeable number, because it can be changed into a prime (23303149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 399 + ... + 6838.

It is an arithmetic number, because the mean of its divisors is an integer number (1215984).

Almost surely, 2^23303140 is an apocalyptic number.

23303140 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 23303140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29183616).

23303140 is an abundant number, since it is smaller than the sum of its proper divisors (35064092).

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

23303140 is a wasteful number, since it uses less digits than its factorization.

23303140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276 (or 7274 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23303140 is about 4827.3325967868. The cubic root of 23303140 is about 285.6306543322.

Adding to 23303140 its reverse (4130332), we get a palindrome (27433472).

The spelling of 23303140 in words is "twenty-three million, three hundred three thousand, one hundred forty".