33227928 has 64 divisors (see below), whose sum is σ = 97740000. Its totient is φ = 10423296.

The previous prime is 33227923. The next prime is 33227933. The reversal of 33227928 is 82972233.

It is an interprime number because it is at equal distance from previous prime (33227923) and next prime (33227933).

It is a super-2 number, since 2×33227928² = 2208190398346368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 33227892 and 33227901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33227923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853 + ... + 8196.

Almost surely, 2^33227928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33227928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48870000).

33227928 is an abundant number, since it is smaller than the sum of its proper divisors (64512072).

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

33227928 is a wasteful number, since it uses less digits than its factorization.

33227928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081 (or 9071 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 33227928 is about 5764.3670944866. The cubic root of 33227928 is about 321.4902109090.

The spelling of 33227928 in words is "thirty-three million, two hundred twenty-seven thousand, nine hundred twenty-eight".