32072228 has 24 divisors (see below), whose sum is σ = 60990720. Its totient is φ = 14700960.

The previous prime is 32072221. The next prime is 32072237. The reversal of 32072228 is 82227023.

It is a junction number, because it is equal to n+sod(n) for n = 32072197 and 32072206.

It is not an unprimeable number, because it can be changed into a prime (32072221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4451 + ... + 9162.

It is an arithmetic number, because the mean of its divisors is an integer number (2541280).

Almost surely, 2^32072228 is an apocalyptic number.

32072228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

32072228 is a deficient number, since it is larger than the sum of its proper divisors (28918492).

32072228 is a wasteful number, since it uses less digits than its factorization.

32072228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13667 (or 13665 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 32072228 is about 5663.2347646906. The cubic root of 32072228 is about 317.7188950765.

The spelling of 32072228 in words is "thirty-two million, seventy-two thousand, two hundred twenty-eight".