33228500 has 24 divisors (see below), whose sum is σ = 72572136. Its totient is φ = 13291200.

The previous prime is 33228499. The next prime is 33228527. The reversal of 33228500 is 582233.

It can be written as a sum of positive squares in 4 ways, for example, as 4477456 + 28751044 = 2116^2 + 5362^2 .

It is a super-2 number, since 2×33228500² = 2208266424500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32729 + ... + 33728.

It is an arithmetic number, because the mean of its divisors is an integer number (3023839).

Almost surely, 2^33228500 is an apocalyptic number.

It is an amenable number.

33228500 is an abundant number, since it is smaller than the sum of its proper divisors (39343636).

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

33228500 is a wasteful number, since it uses less digits than its factorization.

33228500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66476 (or 66464 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 33228500 is about 5764.4167094338. The cubic root of 33228500 is about 321.4920556558.

The spelling of 33228500 in words is "thirty-three million, two hundred twenty-eight thousand, five hundred".