1340314420 has 24 divisors (see below), whose sum is σ = 2937037824. Its totient is φ = 512815776.

The previous prime is 1340314333. The next prime is 1340314427. The reversal of 1340314420 is 244130431.

It is a junction number, because it is equal to n+sod(n) for n = 1340314391 and 1340314400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340314427) 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 7 ways as a sum of consecutive naturals, for example, 1456404 + ... + 1457323.

It is an arithmetic number, because the mean of its divisors is an integer number (122376576).

Almost surely, 2^1340314420 is an apocalyptic number.

1340314420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340314420 is an abundant number, since it is smaller than the sum of its proper divisors (1596723404).

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

1340314420 is a wasteful number, since it uses less digits than its factorization.

1340314420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913759 (or 2913757 counting only the distinct ones).

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

The square root of 1340314420 is about 36610.3048334755. The cubic root of 1340314420 is about 1102.5599935131.

Adding to 1340314420 its reverse (244130431), we get a palindrome (1584444851).

The spelling of 1340314420 in words is "one billion, three hundred forty million, three hundred fourteen thousand, four hundred twenty".