33328230 has 64 divisors (see below), whose sum is σ = 87127488. Its totient is φ = 8110080.

The previous prime is 33328201. The next prime is 33328237. The reversal of 33328230 is 3282333.

It is a super-2 number, since 2×33328230² = 2221541829865800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33328230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33328237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37390 + ... + 38270.

It is an arithmetic number, because the mean of its divisors is an integer number (1361367).

Almost surely, 2^33328230 is an apocalyptic number.

33328230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33328230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43563744).

33328230 is an abundant number, since it is smaller than the sum of its proper divisors (53799258).

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

33328230 is a wasteful number, since it uses less digits than its factorization.

33328230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 33328230 is about 5773.0607133478. The cubic root of 33328230 is about 321.8133699831.

It can be divided in two parts, 3 and 3328230, that added together give a palindrome (3328233).

The spelling of 33328230 in words is "thirty-three million, three hundred twenty-eight thousand, two hundred thirty".