23140512 has 48 divisors (see below), whose sum is σ = 67495680. Its totient is φ = 7713216.

The previous prime is 23140501. The next prime is 23140531. The reversal of 23140512 is 21504132.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12528 + ... + 14255.

It is an arithmetic number, because the mean of its divisors is an integer number (1406160).

Almost surely, 2^23140512 is an apocalyptic number.

It is an amenable number.

23140512 is an abundant number, since it is smaller than the sum of its proper divisors (44355168).

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

23140512 is a wasteful number, since it uses less digits than its factorization.

23140512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26802 (or 26788 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 23140512 is about 4810.4586059959. The cubic root of 23140512 is about 284.9646493550.

Adding to 23140512 its reverse (21504132), we get a palindrome (44644644).

The spelling of 23140512 in words is "twenty-three million, one hundred forty thousand, five hundred twelve".