1340105430 has 32 divisors (see below), whose sum is σ = 3217215744. Its totient is φ = 357254496.

The previous prime is 1340105413. The next prime is 1340105441. The reversal of 1340105430 is 345010431.

1340105430 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1340105397 and 1340105406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192999 + ... + 199821.

It is an arithmetic number, because the mean of its divisors is an integer number (100537992).

Almost surely, 2^1340105430 is an apocalyptic number.

1340105430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340105430 is an abundant number, since it is smaller than the sum of its proper divisors (1877110314).

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

1340105430 is a wasteful number, since it uses less digits than its factorization.

1340105430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1340105430 is about 36607.4504711814. The cubic root of 1340105430 is about 1102.5026845745.

Adding to 1340105430 its reverse (345010431), we get a palindrome (1685115861).

The spelling of 1340105430 in words is "one billion, three hundred forty million, one hundred five thousand, four hundred thirty".