33204040 has 32 divisors (see below), whose sum is σ = 74882880. Its totient is φ = 13250752.

The previous prime is 33204029. The next prime is 33204049. The reversal of 33204040 is 4040233.

It is a super-2 number, since 2×33204040² = 2205016544643200, which contains 22 as substring.

33204040 is a modest number, since divided by 4040 gives 3320 as remainder.

It is not an unprimeable number, because it can be changed into a prime (33204049) 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, 25239 + ... + 26521.

It is an arithmetic number, because the mean of its divisors is an integer number (2340090).

Almost surely, 2^33204040 is an apocalyptic number.

It is an amenable number.

33204040 is an abundant number, since it is smaller than the sum of its proper divisors (41678840).

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

33204040 is a wasteful number, since it uses less digits than its factorization.

33204040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 33204040 is about 5762.2946818086. The cubic root of 33204040 is about 321.4131512414.

Adding to 33204040 its reverse (4040233), we get a palindrome (37244273).

The spelling of 33204040 in words is "thirty-three million, two hundred four thousand, forty".