33384920 has 16 divisors (see below), whose sum is σ = 75116160. Its totient is φ = 13353952.

The previous prime is 33384913. The next prime is 33384929. The reversal of 33384920 is 2948333.

It is a happy number.

It is a super-2 number, since 2×33384920² = 2229105766812800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33384929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417272 + ... + 417351.

It is an arithmetic number, because the mean of its divisors is an integer number (4694760).

Almost surely, 2^33384920 is an apocalyptic number.

It is an amenable number.

33384920 is an abundant number, since it is smaller than the sum of its proper divisors (41731240).

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

33384920 is a wasteful number, since it uses less digits than its factorization.

33384920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834634 (or 834630 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 33384920 is about 5777.9685011256. The cubic root of 33384920 is about 321.9957305608.

The spelling of 33384920 in words is "thirty-three million, three hundred eighty-four thousand, nine hundred twenty".