33445412 has 48 divisors (see below), whose sum is σ = 78594432. Its totient is φ = 12026880.

The previous prime is 33445397. The next prime is 33445417. The reversal of 33445412 is 21454433.

It is a super-2 number, since 2×33445412² = 2237191167699488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (33445417) 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, 173 + ... + 8180.

It is an arithmetic number, because the mean of its divisors is an integer number (1637384).

Almost surely, 2^33445412 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 33445412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39297216).

33445412 is an abundant number, since it is smaller than the sum of its proper divisors (45149020).

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

33445412 is a wasteful number, since it uses less digits than its factorization.

33445412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8388 (or 8386 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 33445412 is about 5783.2008438234. The cubic root of 33445412 is about 322.1900938944.

Adding to 33445412 its reverse (21454433), we get a palindrome (54899845).

The spelling of 33445412 in words is "thirty-three million, four hundred forty-five thousand, four hundred twelve".