33145404 has 12 divisors (see below), whose sum is σ = 77339304. Its totient is φ = 11048464.

The previous prime is 33145397. The next prime is 33145421. The reversal of 33145404 is 40454133.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381047 + ... + 1381070.

It is an arithmetic number, because the mean of its divisors is an integer number (6444942).

Almost surely, 2^33145404 is an apocalyptic number.

It is an amenable number.

33145404 is an abundant number, since it is smaller than the sum of its proper divisors (44193900).

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

33145404 is a wasteful number, since it uses less digits than its factorization.

33145404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762124 (or 2762122 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 33145404 is about 5757.2045299781. The cubic root of 33145404 is about 321.2238420868.

Adding to 33145404 its reverse (40454133), we get a palindrome (73599537).

The spelling of 33145404 in words is "thirty-three million, one hundred forty-five thousand, four hundred four".