1340312622 has 64 divisors (see below), whose sum is σ = 2998349568. Its totient is φ = 396000000.

The previous prime is 1340312609. The next prime is 1340312627. The reversal of 1340312622 is 2262130431.

It is a junction number, because it is equal to n+sod(n) for n = 1340312592 and 1340312601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340312627) 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 31 ways as a sum of consecutive naturals, for example, 445122 + ... + 448122.

It is an arithmetic number, because the mean of its divisors is an integer number (46849212).

Almost surely, 2^1340312622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340312622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499174784).

1340312622 is an abundant number, since it is smaller than the sum of its proper divisors (1658036946).

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

1340312622 is a wasteful number, since it uses less digits than its factorization.

1340312622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1340312622 is about 36610.2802775395. The cubic root of 1340312622 is about 1102.5595004935.

The spelling of 1340312622 in words is "one billion, three hundred forty million, three hundred twelve thousand, six hundred twenty-two".