32313280 has 56 divisors (see below), whose sum is σ = 77449680. Its totient is φ = 12840960.

The previous prime is 32313217. The next prime is 32313287. The reversal of 32313280 is 8231323.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32313287) 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, 76911 + ... + 77329.

It is an arithmetic number, because the mean of its divisors is an integer number (1383030).

Almost surely, 2^32313280 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 32313280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38724840).

32313280 is an abundant number, since it is smaller than the sum of its proper divisors (45136400).

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

32313280 is a wasteful number, since it uses less digits than its factorization.

32313280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 32313280 is about 5684.4771087586. The cubic root of 32313280 is about 318.5128914603.

The spelling of 32313280 in words is "thirty-two million, three hundred thirteen thousand, two hundred eighty".