1340761927 has 4 divisors (see below), whose sum is σ = 1341451800. Its totient is φ = 1340072056.

The previous prime is 1340761921. The next prime is 1340761979. The reversal of 1340761927 is 7291670431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340761927 - 2²³ = 1332373319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340761927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340761921) 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, 342013 + ... + 345910.

It is an arithmetic number, because the mean of its divisors is an integer number (335362950).

Almost surely, 2^1340761927 is an apocalyptic number.

1340761927 is a deficient number, since it is larger than the sum of its proper divisors (689873).

1340761927 is an equidigital number, since it uses as much as digits as its factorization.

1340761927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689872.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1340761927 is about 36616.4160862310. The cubic root of 1340761927 is about 1102.6826882094.

The spelling of 1340761927 in words is "one billion, three hundred forty million, seven hundred sixty-one thousand, nine hundred twenty-seven".