32228840 has 128 divisors (see below), whose sum is σ = 88473600. Its totient is φ = 10333440.

The previous prime is 32228837. The next prime is 32228851. The reversal of 32228840 is 4882223.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407921 + ... + 407999.

It is an arithmetic number, because the mean of its divisors is an integer number (691200).

Almost surely, 2^32228840 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 32228840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44236800).

32228840 is an abundant number, since it is smaller than the sum of its proper divisors (56244760).

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

32228840 is a wasteful number, since it uses less digits than its factorization.

32228840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 171 counting only the distinct ones).

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

The square root of 32228840 is about 5677.0450059868. The cubic root of 32228840 is about 318.2352069720.

The spelling of 32228840 in words is "thirty-two million, two hundred twenty-eight thousand, eight hundred forty".