33240004440 has 64 divisors (see below), whose sum is σ = 100007516160. Its totient is φ = 8838445440.

The previous prime is 33240004433. The next prime is 33240004489. The reversal of 33240004440 is 4440004233.

It is a happy number.

It is a super-2 number, since 2×33240004440² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 33240004440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357496 + ... + 440775.

It is an arithmetic number, because the mean of its divisors is an integer number (1562617440).

Almost surely, 2^33240004440 is an apocalyptic number.

33240004440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33240004440 is an abundant number, since it is smaller than the sum of its proper divisors (66767511720).

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

33240004440 is a wasteful number, since it uses less digits than its factorization.

33240004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798632 (or 798628 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 33240004440 its reverse (4440004233), we get a palindrome (37680008673).

The spelling of 33240004440 in words is "thirty-three billion, two hundred forty million, four thousand, four hundred forty".