1340124040 has 32 divisors (see below), whose sum is σ = 3016333080. Its totient is φ = 535862272.

The previous prime is 1340124013. The next prime is 1340124091. The reversal of 1340124040 is 404210431.

It can be written as a sum of positive squares in 4 ways, for example, as 1153145764 + 186978276 = 33958^2 + 13674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1340123999 and 1340124017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195552 + ... + 202288.

Almost surely, 2^1340124040 is an apocalyptic number.

1340124040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340124040 is an abundant number, since it is smaller than the sum of its proper divisors (1676209040).

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

1340124040 is a wasteful number, since it uses less digits than its factorization.

1340124040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11721 (or 11717 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1340124040 is about 36607.7046535289. The cubic root of 1340124040 is about 1102.5077880237.

Adding to 1340124040 its reverse (404210431), we get a palindrome (1744334471).

The spelling of 1340124040 in words is "one billion, three hundred forty million, one hundred twenty-four thousand, forty".