1340774765 has 32 divisors (see below), whose sum is σ = 1852243200. Its totient is φ = 922155520.

The previous prime is 1340774741. The next prime is 1340774783. The reversal of 1340774765 is 5674770431.

It is not a de Polignac number, because 1340774765 - 2⁸ = 1340774509 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 106631 + ... + 118539.

It is an arithmetic number, because the mean of its divisors is an integer number (57882600).

Almost surely, 2^1340774765 is an apocalyptic number.

It is an amenable number.

1340774765 is a deficient number, since it is larger than the sum of its proper divisors (511468435).

1340774765 is a wasteful number, since it uses less digits than its factorization.

1340774765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12037.

The product of its (nonzero) digits is 493920, while the sum is 44.

The square root of 1340774765 is about 36616.5913896966. The cubic root of 1340774765 is about 1102.6862076499.

The spelling of 1340774765 in words is "one billion, three hundred forty million, seven hundred seventy-four thousand, seven hundred sixty-five".