32878240 has 48 divisors (see below), whose sum is σ = 78859872. Its totient is φ = 12950784.

The previous prime is 32878229. The next prime is 32878253. The reversal of 32878240 is 4287823.

It is a junction number, because it is equal to n+sod(n) for n = 32878196 and 32878205.

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, 9187 + ... + 12253.

It is an arithmetic number, because the mean of its divisors is an integer number (1642914).

Almost surely, 2^32878240 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 32878240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39429936).

32878240 is an abundant number, since it is smaller than the sum of its proper divisors (45981632).

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

32878240 is a wasteful number, since it uses less digits than its factorization.

32878240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 32878240 is about 5733.9550050554. The cubic root of 32878240 is about 320.3584524912.

The spelling of 32878240 in words is "thirty-two million, eight hundred seventy-eight thousand, two hundred forty".