1312250044 has 48 divisors (see below), whose sum is σ = 2668752576. Its totient is φ = 552960000.

The previous prime is 1312249993. The next prime is 1312250063. The reversal of 1312250044 is 4400522131.

It is a junction number, because it is equal to n+sod(n) for n = 1312249997 and 1312250024.

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, 818844 + ... + 820444.

It is an arithmetic number, because the mean of its divisors is an integer number (55599012).

Almost surely, 2^1312250044 is an apocalyptic number.

1312250044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1312250044 is an abundant number, since it is smaller than the sum of its proper divisors (1356502532).

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

1312250044 is a wasteful number, since it uses less digits than its factorization.

1312250044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1312250044 is about 36224.9919806754. The cubic root of 1312250044 is about 1094.8102766174.

Adding to 1312250044 its reverse (4400522131), we get a palindrome (5712772175).

The spelling of 1312250044 in words is "one billion, three hundred twelve million, two hundred fifty thousand, forty-four".