1240413312 has 32 divisors (see below), whose sum is σ = 3294848880. Its totient is φ = 413470976.

The previous prime is 1240413311. The next prime is 1240413319. The reversal of 1240413312 is 2133140421.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1240413311) 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, 1614738 + ... + 1615505.

Almost surely, 2^1240413312 is an apocalyptic number.

1240413312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240413312 is an abundant number, since it is smaller than the sum of its proper divisors (2054435568).

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

1240413312 is an equidigital number, since it uses as much as digits as its factorization.

1240413312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230260 (or 3230248 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1240413312 is about 35219.5018704126. The cubic root of 1240413312 is about 1074.4564223540.

Adding to 1240413312 its reverse (2133140421), we get a palindrome (3373553733).

The spelling of 1240413312 in words is "one billion, two hundred forty million, four hundred thirteen thousand, three hundred twelve".