32872140 has 108 divisors (see below), whose sum is σ = 116022816. Its totient is φ = 7511616.

The previous prime is 32872139. The next prime is 32872157. The reversal of 32872140 is 4127823.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6957 + ... + 10683.

Almost surely, 2^32872140 is an apocalyptic number.

32872140 is a gapful number since it is divisible by the number (30) 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 32872140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58011408).

32872140 is an abundant number, since it is smaller than the sum of its proper divisors (83150676).

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

32872140 is a wasteful number, since it uses less digits than its factorization.

32872140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756 (or 3744 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 32872140 is about 5733.4230613134. The cubic root of 32872140 is about 320.3386389060.

Adding to 32872140 its reverse (4127823), we get a palindrome (36999963).

The spelling of 32872140 in words is "thirty-two million, eight hundred seventy-two thousand, one hundred forty".