32243140 has 12 divisors (see below), whose sum is σ = 67710636. Its totient is φ = 12897248.

The previous prime is 32243129. The next prime is 32243143. The reversal of 32243140 is 4134223.

It can be written as a sum of positive squares in 2 ways, for example, as 18818244 + 13424896 = 4338^2 + 3664^2 .

It is not an unprimeable number, because it can be changed into a prime (32243143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806059 + ... + 806098.

It is an arithmetic number, because the mean of its divisors is an integer number (5642553).

Almost surely, 2^32243140 is an apocalyptic number.

It is an amenable number.

32243140 is an abundant number, since it is smaller than the sum of its proper divisors (35467496).

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

32243140 is a wasteful number, since it uses less digits than its factorization.

32243140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612166 (or 1612164 counting only the distinct ones).

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

The square root of 32243140 is about 5678.3043243560. The cubic root of 32243140 is about 318.2822672091.

Adding to 32243140 its reverse (4134223), we get a palindrome (36377363).

The spelling of 32243140 in words is "thirty-two million, two hundred forty-three thousand, one hundred forty".