32231040 has 64 divisors (see below), whose sum is σ = 102742560. Its totient is φ = 8594432.

The previous prime is 32231039. The next prime is 32231047. The reversal of 32231040 is 4013223.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (32231047) 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, 6474 + ... + 10313.

Almost surely, 2^32231040 is an apocalyptic number.

32231040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32231040 is an abundant number, since it is smaller than the sum of its proper divisors (70511520).

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

32231040 is a wasteful number, since it uses less digits than its factorization.

32231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16809 (or 16797 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 32231040 is about 5677.2387654563. The cubic root of 32231040 is about 318.2424479144.

Adding to 32231040 its reverse (4013223), we get a palindrome (36244263).

The spelling of 32231040 in words is "thirty-two million, two hundred thirty-one thousand, forty".