1340350520 has 32 divisors (see below), whose sum is σ = 3023345520. Its totient is φ = 534796800.

The previous prime is 1340350513. The next prime is 1340350541. The reversal of 1340350520 is 250530431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25742 + ... + 57821.

Almost surely, 2^1340350520 is an apocalyptic number.

1340350520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340350520 is an abundant number, since it is smaller than the sum of its proper divisors (1682995000).

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

1340350520 is a wasteful number, since it uses less digits than its factorization.

1340350520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83975 (or 83971 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1340350520 is about 36610.7978607405. The cubic root of 1340350520 is about 1102.5698922000.

Adding to 1340350520 its reverse (250530431), we get a palindrome (1590880951).

The spelling of 1340350520 in words is "one billion, three hundred forty million, three hundred fifty thousand, five hundred twenty".