1340811766 has 16 divisors (see below), whose sum is σ = 2354597280. Its totient is φ = 560617920.

The previous prime is 1340811763. The next prime is 1340811793. The reversal of 1340811766 is 6671180431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340811763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167381 + ... + 1168528.

It is an arithmetic number, because the mean of its divisors is an integer number (147162330).

Almost surely, 2^1340811766 is an apocalyptic number.

1340811766 is a deficient number, since it is larger than the sum of its proper divisors (1013785514).

1340811766 is a wasteful number, since it uses less digits than its factorization.

1340811766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335959.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1340811766 is about 36617.0966353150. The cubic root of 1340811766 is about 1102.6963510680.

The spelling of 1340811766 in words is "one billion, three hundred forty million, eight hundred eleven thousand, seven hundred sixty-six".