33530364 has 144 divisors (see below), whose sum is σ = 104832000. Its totient is φ = 8823168.

The previous prime is 33530359. The next prime is 33530369. The reversal of 33530364 is 46303533.

It is an interprime number because it is at equal distance from previous prime (33530359) and next prime (33530369).

It is a super-2 number, since 2×33530364² = 2248570619944992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33530369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224962 + ... + 225110.

It is an arithmetic number, because the mean of its divisors is an integer number (728000).

Almost surely, 2^33530364 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 33530364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52416000).

33530364 is an abundant number, since it is smaller than the sum of its proper divisors (71301636).

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

33530364 is a wasteful number, since it uses less digits than its factorization.

33530364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 27.

The square root of 33530364 is about 5790.5409073764. The cubic root of 33530364 is about 322.4626529674.

Adding to 33530364 its reverse (46303533), we get a palindrome (79833897).

The spelling of 33530364 in words is "thirty-three million, five hundred thirty thousand, three hundred sixty-four".