32068640 has 48 divisors (see below), whose sum is σ = 77824152. Its totient is φ = 12478464.

The previous prime is 32068639. The next prime is 32068661. The reversal of 32068640 is 4686023.

It can be written as a sum of positive squares in 4 ways, for example, as 25120144 + 6948496 = 5012^2 + 2636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3212 + ... + 8628.

Almost surely, 2^32068640 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 32068640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38912076).

32068640 is an abundant number, since it is smaller than the sum of its proper divisors (45755512).

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

32068640 is a wasteful number, since it uses less digits than its factorization.

32068640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469 (or 5461 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 32068640 is about 5662.9179757436. The cubic root of 32068640 is about 317.7070466334.

The spelling of 32068640 in words is "thirty-two million, sixty-eight thousand, six hundred forty".