1312402244 has 36 divisors (see below), whose sum is σ = 2484929916. Its totient is φ = 604391424.

The previous prime is 1312402229. The next prime is 1312402253. The reversal of 1312402244 is 4422042131.

It can be written as a sum of positive squares in 2 ways, for example, as 768952900 + 543449344 = 27730^2 + 23312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145844 + ... + 154580.

It is an arithmetic number, because the mean of its divisors is an integer number (69025831).

Almost surely, 2^1312402244 is an apocalyptic number.

It is an amenable number.

1312402244 is a deficient number, since it is larger than the sum of its proper divisors (1172527672).

1312402244 is a wasteful number, since it uses less digits than its factorization.

1312402244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852 (or 8803 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1312402244 is about 36227.0926793746. The cubic root of 1312402244 is about 1094.8526018036.

Adding to 1312402244 its reverse (4422042131), we get a palindrome (5734444375).

The spelling of 1312402244 in words is "one billion, three hundred twelve million, four hundred two thousand, two hundred forty-four".