33404004440 has 16 divisors (see below), whose sum is σ = 75159010080. Its totient is φ = 13361601760.

The previous prime is 33404004427. The next prime is 33404004449. The reversal of 33404004440 is 4440040433.

It is a super-2 number, since 2×33404004440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33404004449) 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, 417550016 + ... + 417550095.

It is an arithmetic number, because the mean of its divisors is an integer number (4697438130).

Almost surely, 2^33404004440 is an apocalyptic number.

It is an amenable number.

33404004440 is an abundant number, since it is smaller than the sum of its proper divisors (41755005640).

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

33404004440 is a wasteful number, since it uses less digits than its factorization.

33404004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835100122 (or 835100118 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 33404004440 its reverse (4440040433), we get a palindrome (37844044873).

The spelling of 33404004440 in words is "thirty-three billion, four hundred four million, four thousand, four hundred forty".