33404040036 has 120 divisors (see below), whose sum is σ = 87915212000. Its totient is φ = 11059711488.

The previous prime is 33404040031. The next prime is 33404040073. The reversal of 33404040036 is 63004040433.

It is a super-2 number, since 2×33404040036² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 33404039991 and 33404040009.

It is not an unprimeable number, because it can be changed into a prime (33404040031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 49634196 + ... + 49634868.

Almost surely, 2^33404040036 is an apocalyptic number.

33404040036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33404040036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43957606000).

33404040036 is an abundant number, since it is smaller than the sum of its proper divisors (54511171964).

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

33404040036 is a wasteful number, since it uses less digits than its factorization.

33404040036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 33404040036 its reverse (63004040433), we get a palindrome (96408080469).

The spelling of 33404040036 in words is "thirty-three billion, four hundred four million, forty thousand, thirty-six".