33353144 has 16 divisors (see below), whose sum is σ = 68222520. Its totient is φ = 15160480.

The previous prime is 33353143. The next prime is 33353147. The reversal of 33353144 is 44135333.

It is a happy number.

It is a super-2 number, since 2×33353144² = 2224864429369472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33353143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189419 + ... + 189594.

Almost surely, 2^33353144 is an apocalyptic number.

It is an amenable number.

33353144 is an abundant number, since it is smaller than the sum of its proper divisors (34869376).

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

33353144 is a wasteful number, since it uses less digits than its factorization.

33353144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379030 (or 379026 counting only the distinct ones).

The product of its digits is 6480, while the sum is 26.

The square root of 33353144 is about 5775.2180911200. The cubic root of 33353144 is about 321.8935388700.

Adding to 33353144 its reverse (44135333), we get a palindrome (77488477).

The spelling of 33353144 in words is "thirty-three million, three hundred fifty-three thousand, one hundred forty-four".