1340689160 has 16 divisors (see below), whose sum is σ = 3016550700. Its totient is φ = 536275648.

The previous prime is 1340689151. The next prime is 1340689177. The reversal of 1340689160 is 619860431.

It can be written as a sum of positive squares in 2 ways, for example, as 1284648964 + 56040196 = 35842^2 + 7486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16758575 + ... + 16758654.

Almost surely, 2^1340689160 is an apocalyptic number.

1340689160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340689160 is an abundant number, since it is smaller than the sum of its proper divisors (1675861540).

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

1340689160 is a wasteful number, since it uses less digits than its factorization.

1340689160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33517240 (or 33517236 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1340689160 is about 36615.4224337232. The cubic root of 1340689160 is about 1102.6627392632.

The spelling of 1340689160 in words is "one billion, three hundred forty million, six hundred eighty-nine thousand, one hundred sixty".