1340762808 has 128 divisors (see below), whose sum is σ = 4190699520. Its totient is φ = 347276160.

The previous prime is 1340762807. The next prime is 1340762837. The reversal of 1340762808 is 8082670431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340762807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854841 + ... + 856407.

It is an arithmetic number, because the mean of its divisors is an integer number (32739840).

Almost surely, 2^1340762808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340762808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2095349760).

1340762808 is an abundant number, since it is smaller than the sum of its proper divisors (2849936712).

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

1340762808 is a wasteful number, since it uses less digits than its factorization.

1340762808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1340762808 is about 36616.4281163524. The cubic root of 1340762808 is about 1102.6829297296.

The spelling of 1340762808 in words is "one billion, three hundred forty million, seven hundred sixty-two thousand, eight hundred eight".