8220132 has 18 divisors (see below), whose sum is σ = 20778758. Its totient is φ = 2740032.

The previous prime is 8220109. The next prime is 8220139. The reversal of 8220132 is 2310228.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7001316 + 1218816 = 2646^2 + 1104^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114133 + ... + 114204.

Almost surely, 2^8220132 is an apocalyptic number.

It is an amenable number.

8220132 is an abundant number, since it is smaller than the sum of its proper divisors (12558626).

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

8220132 is a wasteful number, since it uses less digits than its factorization.

8220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228347 (or 228342 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 8220132 is about 2867.0772574174. The cubic root of 8220132 is about 201.8178601938.

The spelling of 8220132 in words is "eight million, two hundred twenty thousand, one hundred thirty-two".