1340626241 has 8 divisors (see below), whose sum is σ = 1383354504. Its totient is φ = 1298375680.

The previous prime is 1340626211. The next prime is 1340626253. The reversal of 1340626241 is 1426260431.

It can be written as a sum of positive squares in 4 ways, for example, as 308353600 + 1032272641 = 17560^2 + 32129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340626241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340626201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113720 + ... + 124953.

It is an arithmetic number, because the mean of its divisors is an integer number (172919313).

Almost surely, 2^1340626241 is an apocalyptic number.

It is an amenable number.

1340626241 is a deficient number, since it is larger than the sum of its proper divisors (42728263).

1340626241 is a wasteful number, since it uses less digits than its factorization.

1340626241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238851.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1340626241 is about 36614.5632365047. The cubic root of 1340626241 is about 1102.6454895471.

Adding to 1340626241 its reverse (1426260431), we get a palindrome (2766886672).

The spelling of 1340626241 in words is "one billion, three hundred forty million, six hundred twenty-six thousand, two hundred forty-one".