33404136 has 32 divisors (see below), whose sum is σ = 84327360. Its totient is φ = 11025792.

The previous prime is 33404117. The next prime is 33404153. The reversal of 33404136 is 63140433.

It is a super-2 number, since 2×33404136² = 2231672603812992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4285 + ... + 9228.

It is an arithmetic number, because the mean of its divisors is an integer number (2635230).

Almost surely, 2^33404136 is an apocalyptic number.

It is an amenable number.

33404136 is an abundant number, since it is smaller than the sum of its proper divisors (50923224).

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

33404136 is a wasteful number, since it uses less digits than its factorization.

33404136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13625 (or 13621 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 33404136 is about 5779.6311300982. The cubic root of 33404136 is about 322.0574978017.

Adding to 33404136 its reverse (63140433), we get a palindrome (96544569).

The spelling of 33404136 in words is "thirty-three million, four hundred four thousand, one hundred thirty-six".