1340878874 has 4 divisors (see below), whose sum is σ = 2011318314. Its totient is φ = 670439436.

The previous prime is 1340878873. The next prime is 1340878879. The reversal of 1340878874 is 4788780431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1066479649 + 274399225 = 32657^2 + 16565^2 .

It is not an unprimeable number, because it can be changed into a prime (1340878873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335219717 + ... + 335219720.

Almost surely, 2^1340878874 is an apocalyptic number.

1340878874 is a deficient number, since it is larger than the sum of its proper divisors (670439440).

1340878874 is an equidigital number, since it uses as much as digits as its factorization.

1340878874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670439439.

The product of its (nonzero) digits is 1204224, while the sum is 50.

The square root of 1340878874 is about 36618.0129717602. The cubic root of 1340878874 is about 1102.7147475136.

The spelling of 1340878874 in words is "one billion, three hundred forty million, eight hundred seventy-eight thousand, eight hundred seventy-four".