1340605500 has 96 divisors (see below), whose sum is σ = 4204200000. Its totient is φ = 329990400.

The previous prime is 1340605481. The next prime is 1340605501. The reversal of 1340605500 is 55060431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340605501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14875 + ... + 53874.

It is an arithmetic number, because the mean of its divisors is an integer number (43793750).

Almost surely, 2^1340605500 is an apocalyptic number.

1340605500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340605500 is an abundant number, since it is smaller than the sum of its proper divisors (2863594500).

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

1340605500 is a wasteful number, since it uses less digits than its factorization.

1340605500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68784 (or 68772 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1340605500 is about 36614.2800011143. The cubic root of 1340605500 is about 1102.6398031280.

Adding to 1340605500 its reverse (55060431), we get a palindrome (1395665931).

The spelling of 1340605500 in words is "one billion, three hundred forty million, six hundred five thousand, five hundred".