32145872 has 40 divisors (see below), whose sum is σ = 71528160. Its totient is φ = 13841280.

The previous prime is 32145871. The next prime is 32145877. The reversal of 32145872 is 27854123.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32145871) 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 7 ways as a sum of consecutive naturals, for example, 1463 + ... + 8150.

It is an arithmetic number, because the mean of its divisors is an integer number (1788204).

Almost surely, 2^32145872 is an apocalyptic number.

It is an amenable number.

32145872 is an abundant number, since it is smaller than the sum of its proper divisors (39382288).

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

32145872 is a wasteful number, since it uses less digits than its factorization.

32145872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651 (or 9645 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 32145872 is about 5669.7329743119. The cubic root of 32145872 is about 317.9618904003.

Adding to 32145872 its reverse (27854123), we get a palindrome (59999995).

The spelling of 32145872 in words is "thirty-two million, one hundred forty-five thousand, eight hundred seventy-two".