32133228 has 12 divisors (see below), whose sum is σ = 74977560. Its totient is φ = 10711072.

The previous prime is 32133221. The next prime is 32133239. The reversal of 32133228 is 82233123.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 32133198 and 32133207.

It is not an unprimeable number, because it can be changed into a prime (32133221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338873 + ... + 1338896.

It is an arithmetic number, because the mean of its divisors is an integer number (6248130).

Almost surely, 2^32133228 is an apocalyptic number.

It is an amenable number.

32133228 is an abundant number, since it is smaller than the sum of its proper divisors (42844332).

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

32133228 is a wasteful number, since it uses less digits than its factorization.

32133228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677776 (or 2677774 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 32133228 is about 5668.6178209507. The cubic root of 32133228 is about 317.9201967383.

It can be divided in two parts, 3213 and 3228, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 32133228 in words is "thirty-two million, one hundred thirty-three thousand, two hundred twenty-eight".