1240516316 has 144 divisors (see below), whose sum is σ = 2688966336. Its totient is φ = 496336896.

The previous prime is 1240516307. The next prime is 1240516349. The reversal of 1240516316 is 6136150421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12788780 + ... + 12788876.

Almost surely, 2^1240516316 is an apocalyptic number.

It is an amenable number.

1240516316 is an abundant number, since it is smaller than the sum of its proper divisors (1448450020).

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

1240516316 is a wasteful number, since it uses less digits than its factorization.

1240516316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1240516316 is about 35220.9641548893. The cubic root of 1240516316 is about 1074.4861625072.

Adding to 1240516316 its reverse (6136150421), we get a palindrome (7376666737).

The spelling of 1240516316 in words is "one billion, two hundred forty million, five hundred sixteen thousand, three hundred sixteen".