23234140 has 48 divisors (see below), whose sum is σ = 51928128. Its totient is φ = 8712704.

The previous prime is 23234129. The next prime is 23234143. The reversal of 23234140 is 4143232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23234143) 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, 23904 + ... + 24856.

It is an arithmetic number, because the mean of its divisors is an integer number (1081836).

Almost surely, 2^23234140 is an apocalyptic number.

23234140 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 23234140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25964064).

23234140 is an abundant number, since it is smaller than the sum of its proper divisors (28693988).

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

23234140 is a wasteful number, since it uses less digits than its factorization.

23234140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23234140 is about 4820.1804945458. The cubic root of 23234140 is about 285.3484606114.

Adding to 23234140 its reverse (4143232), we get a palindrome (27377372).

The spelling of 23234140 in words is "twenty-three million, two hundred thirty-four thousand, one hundred forty".