23650140 has 24 divisors (see below), whose sum is σ = 66220560. Its totient is φ = 6306688.

The previous prime is 23650087. The next prime is 23650147. The reversal of 23650140 is 4105632.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23650147) 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, 197025 + ... + 197144.

It is an arithmetic number, because the mean of its divisors is an integer number (2759190).

Almost surely, 2^23650140 is an apocalyptic number.

23650140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23650140 is an abundant number, since it is smaller than the sum of its proper divisors (42570420).

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

23650140 is a wasteful number, since it uses less digits than its factorization.

23650140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394181 (or 394179 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 23650140 is about 4863.1409603259. The cubic root of 23650140 is about 287.0414214194.

Adding to 23650140 its reverse (4105632), we get a palindrome (27755772).

The spelling of 23650140 in words is "twenty-three million, six hundred fifty thousand, one hundred forty".