1340892080 has 80 divisors (see below), whose sum is σ = 3423852288. Its totient is φ = 484320000.

The previous prime is 1340892071. The next prime is 1340892083. The reversal of 1340892080 is 802980431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1340892080.

It is not an unprimeable number, because it can be changed into a prime (1340892083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127835 + ... + 137925.

Almost surely, 2^1340892080 is an apocalyptic number.

1340892080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340892080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1711926144).

1340892080 is an abundant number, since it is smaller than the sum of its proper divisors (2082960208).

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

1340892080 is a wasteful number, since it uses less digits than its factorization.

1340892080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10266 (or 10260 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1340892080 is about 36618.1932924059. The cubic root of 1340892080 is about 1102.7183676276.

The spelling of 1340892080 in words is "one billion, three hundred forty million, eight hundred ninety-two thousand, eighty".