23432140 has 24 divisors (see below), whose sum is σ = 49361760. Its totient is φ = 9343488.

The previous prime is 23432107. The next prime is 23432141. The reversal of 23432140 is 4123432.

It is not an unprimeable number, because it can be changed into a prime (23432141) 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 7 ways as a sum of consecutive naturals, for example, 5401 + ... + 8719.

It is an arithmetic number, because the mean of its divisors is an integer number (2056740).

Almost surely, 2^23432140 is an apocalyptic number.

23432140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23432140 is an abundant number, since it is smaller than the sum of its proper divisors (25929620).

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

23432140 is a wasteful number, since it uses less digits than its factorization.

23432140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681 (or 3679 counting only the distinct ones).

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

The square root of 23432140 is about 4840.6755726861. The cubic root of 23432140 is about 286.1567432654.

Adding to 23432140 its reverse (4123432), we get a palindrome (27555572).

The spelling of 23432140 in words is "twenty-three million, four hundred thirty-two thousand, one hundred forty".