1340300040 has 64 divisors (see below), whose sum is σ = 4096785600. Its totient is φ = 350668032.

The previous prime is 1340300023. The next prime is 1340300057. The reversal of 1340300040 is 400030431.

It is an interprime number because it is at equal distance from previous prime (1340300023) and next prime (1340300057).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1340299992 and 1340300019.

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, 99010 + ... + 111729.

It is an arithmetic number, because the mean of its divisors is an integer number (64012275).

Almost surely, 2^1340300040 is an apocalyptic number.

1340300040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340300040 is an abundant number, since it is smaller than the sum of its proper divisors (2756485560).

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

1340300040 is a wasteful number, since it uses less digits than its factorization.

1340300040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210806 (or 210802 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1340300040 is about 36610.1084401563. The cubic root of 1340300040 is about 1102.5560504409.

Adding to 1340300040 its reverse (400030431), we get a palindrome (1740330471).

The spelling of 1340300040 in words is "one billion, three hundred forty million, three hundred thousand, forty".