32780140 has 24 divisors (see below), whose sum is σ = 68972400. Its totient is φ = 13086528.

The previous prime is 32780107. The next prime is 32780141. The reversal of 32780140 is 4108723.

It is not an unprimeable number, because it can be changed into a prime (32780141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11586 + ... + 14134.

It is an arithmetic number, because the mean of its divisors is an integer number (2873850).

Almost surely, 2^32780140 is an apocalyptic number.

It is an amenable number.

32780140 is an abundant number, since it is smaller than the sum of its proper divisors (36192260).

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

32780140 is a wasteful number, since it uses less digits than its factorization.

32780140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 32780140 is about 5725.3943095651. The cubic root of 32780140 is about 320.0395133499.

Adding to 32780140 its reverse (4108723), we get a palindrome (36888863).

The spelling of 32780140 in words is "thirty-two million, seven hundred eighty thousand, one hundred forty".