1340857610 has 8 divisors (see below), whose sum is σ = 2413543716. Its totient is φ = 536343040.

The previous prime is 1340857591. The next prime is 1340857619. The reversal of 1340857610 is 167580431.

It can be written as a sum of positive squares in 2 ways, for example, as 1131447769 + 209409841 = 33637^2 + 14471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1340857619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67042871 + ... + 67042890.

Almost surely, 2^1340857610 is an apocalyptic number.

1340857610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340857610 is a deficient number, since it is larger than the sum of its proper divisors (1072686106).

1340857610 is a wasteful number, since it uses less digits than its factorization.

1340857610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134085768.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1340857610 is about 36617.7226217033. The cubic root of 1340857610 is about 1102.7089184386.

The spelling of 1340857610 in words is "one billion, three hundred forty million, eight hundred fifty-seven thousand, six hundred ten".