1340134430 has 16 divisors (see below), whose sum is σ = 2416433040. Its totient is φ = 535122432.

The previous prime is 1340134427. The next prime is 1340134451. The reversal of 1340134430 is 344310431.

It is a junction number, because it is equal to n+sod(n) for n = 1340134396 and 1340134405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110360 + ... + 121899.

It is an arithmetic number, because the mean of its divisors is an integer number (151027065).

Almost surely, 2^1340134430 is an apocalyptic number.

1340134430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340134430 is a deficient number, since it is larger than the sum of its proper divisors (1076298610).

1340134430 is a wasteful number, since it uses less digits than its factorization.

1340134430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232843.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1340134430 is about 36607.8465632711. The cubic root of 1340134430 is about 1102.5106372690.

Adding to 1340134430 its reverse (344310431), we get a palindrome (1684444861).

The spelling of 1340134430 in words is "one billion, three hundred forty million, one hundred thirty-four thousand, four hundred thirty".