1340324140 has 12 divisors (see below), whose sum is σ = 2814680736. Its totient is φ = 536129648.

The previous prime is 1340324129. The next prime is 1340324143. The reversal of 1340324140 is 414230431.

It is not an unprimeable number, because it can be changed into a prime (1340324143) 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, 33508084 + ... + 33508123.

It is an arithmetic number, because the mean of its divisors is an integer number (234556728).

Almost surely, 2^1340324140 is an apocalyptic number.

1340324140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340324140 is an abundant number, since it is smaller than the sum of its proper divisors (1474356596).

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

1340324140 is a wasteful number, since it uses less digits than its factorization.

1340324140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67016216 (or 67016214 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1340324140 is about 36610.4375827441. The cubic root of 1340324140 is about 1102.5626587726.

Adding to 1340324140 its reverse (414230431), we get a palindrome (1754554571).

The spelling of 1340324140 in words is "one billion, three hundred forty million, three hundred twenty-four thousand, one hundred forty".