1240311342 has 8 divisors (see below), whose sum is σ = 2480622696. Its totient is φ = 413437112.

The previous prime is 1240311311. The next prime is 1240311343. The reversal of 1240311342 is 2431130421.

It is a sphenic number, since it is the product of 3 distinct primes.

1240311342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240311343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 103359273 + ... + 103359284.

It is an arithmetic number, because the mean of its divisors is an integer number (310077837).

Almost surely, 2^1240311342 is an apocalyptic number.

1240311342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1240311342 is a wasteful number, since it uses less digits than its factorization.

1240311342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206718562.

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

The square root of 1240311342 is about 35218.0542051942. The cubic root of 1240311342 is about 1074.4269791238.

Adding to 1240311342 its reverse (2431130421), we get a palindrome (3671441763).

The spelling of 1240311342 in words is "one billion, two hundred forty million, three hundred eleven thousand, three hundred forty-two".