23245140 has 48 divisors (see below), whose sum is σ = 65399040. Its totient is φ = 6168960.

The previous prime is 23245129. The next prime is 23245141. The reversal of 23245140 is 4154232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23245141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13530 + ... + 15150.

It is an arithmetic number, because the mean of its divisors is an integer number (1362480).

Almost surely, 2^23245140 is an apocalyptic number.

23245140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23245140 is an abundant number, since it is smaller than the sum of its proper divisors (42153900).

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

23245140 is a wasteful number, since it uses less digits than its factorization.

23245140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 23245140 is about 4821.3213956342. The cubic root of 23245140 is about 285.3934854161.

Adding to 23245140 its reverse (4154232), we get a palindrome (27399372).

The spelling of 23245140 in words is "twenty-three million, two hundred forty-five thousand, one hundred forty".