1340310544 has 60 divisors (see below), whose sum is σ = 2729220780. Its totient is φ = 637459200.

The previous prime is 1340310511. The next prime is 1340310557. The reversal of 1340310544 is 4450130431.

It can be written as a sum of positive squares in 2 ways, for example, as 64963600 + 1275346944 = 8060^2 + 35712^2 .

It is a super-3 number, since 3×1340310544³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 937222 + ... + 938650.

It is an arithmetic number, because the mean of its divisors is an integer number (45487013).

Almost surely, 2^1340310544 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 1340310544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1364610390).

1340310544 is an abundant number, since it is smaller than the sum of its proper divisors (1388910236).

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

1340310544 is a wasteful number, since it uses less digits than its factorization.

1340310544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1340310544 is about 36610.2518975218. The cubic root of 1340310544 is about 1102.5589306961.

Adding to 1340310544 its reverse (4450130431), we get a palindrome (5790440975).

The spelling of 1340310544 in words is "one billion, three hundred forty million, three hundred ten thousand, five hundred forty-four".