32248640 has 56 divisors (see below), whose sum is σ = 77358240. Its totient is φ = 12804608.

The previous prime is 32248639. The next prime is 32248679. The reversal of 32248640 is 4684223.

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, 56999 + ... + 57561.

Almost surely, 2^32248640 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 32248640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38679120).

32248640 is an abundant number, since it is smaller than the sum of its proper divisors (45109600).

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

32248640 is a wasteful number, since it uses less digits than its factorization.

32248640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 32248640 is about 5678.7886032146. The cubic root of 32248640 is about 318.3003635954.

The spelling of 32248640 in words is "thirty-two million, two hundred forty-eight thousand, six hundred forty".