33240442240 has 64 divisors (see below), whose sum is σ = 83647854000. Its totient is φ = 12596373504.

The previous prime is 33240442223. The next prime is 33240442241. The reversal of 33240442240 is 4224404233.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×33240442240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33240442199 and 33240442208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240442241) 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 7 ways as a sum of consecutive naturals, for example, 1354635 + ... + 1378954.

Almost surely, 2^33240442240 is an apocalyptic number.

It is an amenable number.

33240442240 is an abundant number, since it is smaller than the sum of its proper divisors (50407411760).

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

33240442240 is a wasteful number, since it uses less digits than its factorization.

33240442240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733627 (or 2733615 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 33240442240 its reverse (4224404233), we get a palindrome (37464846473).

The spelling of 33240442240 in words is "thirty-three billion, two hundred forty million, four hundred forty-two thousand, two hundred forty".