3531112240 has 80 divisors (see below), whose sum is σ = 8373526560. Its totient is φ = 1384427520.

The previous prime is 3531112231. The next prime is 3531112259. The reversal of 3531112240 is 422111353.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1986232 + ... + 1988008.

It is an arithmetic number, because the mean of its divisors is an integer number (104669082).

Almost surely, 2^3531112240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3531112240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4186763280).

3531112240 is an abundant number, since it is smaller than the sum of its proper divisors (4842414320).

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

3531112240 is a wasteful number, since it uses less digits than its factorization.

3531112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3531112240 is about 59423.1624873668. The cubic root of 3531112240 is about 1522.7800346451.

Adding to 3531112240 its reverse (422111353), we get a palindrome (3953223593).

The spelling of 3531112240 in words is "three billion, five hundred thirty-one million, one hundred twelve thousand, two hundred forty".