32220408 has 96 divisors (see below), whose sum is σ = 91514880. Its totient is φ = 9374400.

The previous prime is 32220379. The next prime is 32220413. The reversal of 32220408 is 80402223.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253641 + ... + 253767.

It is an arithmetic number, because the mean of its divisors is an integer number (953280).

Almost surely, 2^32220408 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 32220408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45757440).

32220408 is an abundant number, since it is smaller than the sum of its proper divisors (59294472).

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

32220408 is a wasteful number, since it uses less digits than its factorization.

32220408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 32220408 is about 5676.3023175303. The cubic root of 32220408 is about 318.2074513622.

The spelling of 32220408 in words is "thirty-two million, two hundred twenty thousand, four hundred eight".