33440330240 has 40 divisors (see below), whose sum is σ = 80178422940. Its totient is φ = 13376131072.

The previous prime is 33440330221. The next prime is 33440330243. The reversal of 33440330240 is 4203304433.

It can be written as a sum of positive squares in 2 ways, for example, as 29325877504 + 4114452736 = 171248^2 + 64144^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33440330240² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33440330243) 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, 6528755 + ... + 6533874.

Almost surely, 2^33440330240 is an apocalyptic number.

It is an amenable number.

33440330240 is an abundant number, since it is smaller than the sum of its proper divisors (46738092700).

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

33440330240 is an equidigital number, since it uses as much as digits as its factorization.

33440330240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13062652 (or 13062636 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 33440330240 its reverse (4203304433), we get a palindrome (37643634673).

The spelling of 33440330240 in words is "thirty-three billion, four hundred forty million, three hundred thirty thousand, two hundred forty".