1340510320 has 20 divisors (see below), whose sum is σ = 3116686680. Its totient is φ = 536204096.

The previous prime is 1340510309. The next prime is 1340510321. The reversal of 1340510320 is 230150431.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340510321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8378110 + ... + 8378269.

It is an arithmetic number, because the mean of its divisors is an integer number (155834334).

Almost surely, 2^1340510320 is an apocalyptic number.

1340510320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340510320 is an abundant number, since it is smaller than the sum of its proper divisors (1776176360).

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

1340510320 is a wasteful number, since it uses less digits than its factorization.

1340510320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16756392 (or 16756386 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1340510320 is about 36612.9802119412. The cubic root of 1340510320 is about 1102.6137075216.

Adding to 1340510320 its reverse (230150431), we get a palindrome (1570660751).

The spelling of 1340510320 in words is "one billion, three hundred forty million, five hundred ten thousand, three hundred twenty".