1240341140 has 12 divisors (see below), whose sum is σ = 2604716436. Its totient is φ = 496136448.

The previous prime is 1240341133. The next prime is 1240341163. The reversal of 1240341140 is 411430421.

It can be written as a sum of positive squares in 2 ways, for example, as 195888016 + 1044453124 = 13996^2 + 32318^2 .

It is a super-2 number, since 2×1240341140² = 3076892287152999200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 62017057 = 1240341140 / (1 + 2 + 4 + 0 + 3 + 4 + 1 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31008509 + ... + 31008548.

It is an arithmetic number, because the mean of its divisors is an integer number (217059703).

Almost surely, 2^1240341140 is an apocalyptic number.

1240341140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240341140 is an abundant number, since it is smaller than the sum of its proper divisors (1364375296).

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

1240341140 is a wasteful number, since it uses less digits than its factorization.

1240341140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62017066 (or 62017064 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1240341140 is about 35218.4772527149. The cubic root of 1240341140 is about 1074.4355832857.

Adding to 1240341140 its reverse (411430421), we get a palindrome (1651771561).

The spelling of 1240341140 in words is "one billion, two hundred forty million, three hundred forty-one thousand, one hundred forty".