32440880 has 80 divisors (see below), whose sum is σ = 79233024. Its totient is φ = 12337920.

The previous prime is 32440867. The next prime is 32440883. The reversal of 32440880 is 8804423.

It is a tau number, because it is divible by the number of its divisors (80).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (32440883) 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 15 ways as a sum of consecutive naturals, for example, 255377 + ... + 255503.

Almost surely, 2^32440880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32440880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39616512).

32440880 is an abundant number, since it is smaller than the sum of its proper divisors (46792144).

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

32440880 is a wasteful number, since it uses less digits than its factorization.

32440880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 32440880 is about 5695.6895982840. The cubic root of 32440880 is about 318.9315930531.

The spelling of 32440880 in words is "thirty-two million, four hundred forty thousand, eight hundred eighty".