33133430 has 48 divisors (see below), whose sum is σ = 66361680. Its totient is φ = 11901120.

The previous prime is 33133421. The next prime is 33133481. The reversal of 33133430 is 3433133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168092 + ... + 168288.

It is an arithmetic number, because the mean of its divisors is an integer number (1382535).

Almost surely, 2^33133430 is an apocalyptic number.

33133430 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

33133430 is a wasteful number, since it uses less digits than its factorization.

33133430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 33133430 is about 5756.1645216238. The cubic root of 33133430 is about 321.1851560038.

Adding to 33133430 its reverse (3433133), we get a palindrome (36566563).

The spelling of 33133430 in words is "thirty-three million, one hundred thirty-three thousand, four hundred thirty".