3547081242 has 24 divisors (see below), whose sum is σ = 7790624244. Its totient is φ = 1166163264.

The previous prime is 3547081201. The next prime is 3547081289. The reversal of 3547081242 is 2421807453.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2942954001 + 604127241 = 54249^2 + 24579^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3547081197 and 3547081206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1348413 + ... + 1351040.

Almost surely, 2^3547081242 is an apocalyptic number.

3547081242 is an abundant number, since it is smaller than the sum of its proper divisors (4243543002).

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

3547081242 is a wasteful number, since it uses less digits than its factorization.

3547081242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699534 (or 2699531 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 3547081242 is about 59557.3777293796. The cubic root of 3547081242 is about 1525.0721086749.

Adding to 3547081242 its reverse (2421807453), we get a palindrome (5968888695).

The spelling of 3547081242 in words is "three billion, five hundred forty-seven million, eighty-one thousand, two hundred forty-two".