1340002740 has 96 divisors (see below), whose sum is σ = 3999744000. Its totient is φ = 334219392.

The previous prime is 1340002723. The next prime is 1340002777. The reversal of 1340002740 is 472000431.

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, 82621 + ... + 97499.

It is an arithmetic number, because the mean of its divisors is an integer number (41664000).

Almost surely, 2^1340002740 is an apocalyptic number.

1340002740 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 1340002740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999872000).

1340002740 is an abundant number, since it is smaller than the sum of its proper divisors (2659741260).

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

1340002740 is a wasteful number, since it uses less digits than its factorization.

1340002740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14989 (or 14987 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 1340002740 is about 36606.0478609751. The cubic root of 1340002740 is about 1102.4745228866.

The spelling of 1340002740 in words is "one billion, three hundred forty million, two thousand, seven hundred forty".