1340165244 has 48 divisors (see below), whose sum is σ = 3458085120. Its totient is φ = 400544640.

The previous prime is 1340165231. The next prime is 1340165251. The reversal of 1340165244 is 4425610431.

It is a congruent number.

It is an unprimeable number.

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, 59904 + ... + 79175.

It is an arithmetic number, because the mean of its divisors is an integer number (72043440).

Almost surely, 2^1340165244 is an apocalyptic number.

It is an amenable number.

1340165244 is an abundant number, since it is smaller than the sum of its proper divisors (2117919876).

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

1340165244 is a wasteful number, since it uses less digits than its factorization.

1340165244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139170 (or 139168 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1340165244 is about 36608.2674269078. The cubic root of 1340165244 is about 1102.5190872925.

Adding to 1340165244 its reverse (4425610431), we get a palindrome (5765775675).

The spelling of 1340165244 in words is "one billion, three hundred forty million, one hundred sixty-five thousand, two hundred forty-four".