1240314340 has 96 divisors (see below), whose sum is σ = 2813045760. Its totient is φ = 458304000.

The previous prime is 1240314323. The next prime is 1240314359. The reversal of 1240314340 is 434130421.

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 31 ways as a sum of consecutive naturals, for example, 1815639 + ... + 1816321.

It is an arithmetic number, because the mean of its divisors is an integer number (29302560).

Almost surely, 2^1240314340 is an apocalyptic number.

1240314340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240314340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406522880).

1240314340 is an abundant number, since it is smaller than the sum of its proper divisors (1572731420).

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

1240314340 is a wasteful number, since it uses less digits than its factorization.

1240314340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1240314340 is about 35218.0967685649. The cubic root of 1240314340 is about 1074.4278448015.

Adding to 1240314340 its reverse (434130421), we get a palindrome (1674444761).

The spelling of 1240314340 in words is "one billion, two hundred forty million, three hundred fourteen thousand, three hundred forty".