33284380 has 24 divisors (see below), whose sum is σ = 70009632. Its totient is φ = 13292352.

The previous prime is 33284353. The next prime is 33284387. The reversal of 33284380 is 8348233.

It is a super-2 number, since 2×33284380² = 2215699903968800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33284387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18814 + ... + 20506.

It is an arithmetic number, because the mean of its divisors is an integer number (2917068).

Almost surely, 2^33284380 is an apocalyptic number.

It is an amenable number.

33284380 is an abundant number, since it is smaller than the sum of its proper divisors (36725252).

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

33284380 is a wasteful number, since it uses less digits than its factorization.

33284380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685 (or 2683 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 33284380 is about 5769.2616511994. The cubic root of 33284380 is about 321.6721712691.

The spelling of 33284380 in words is "thirty-three million, two hundred eighty-four thousand, three hundred eighty".