1310400044 has 24 divisors (see below), whose sum is σ = 2368336320. Its totient is φ = 634046336.

The previous prime is 1310400011. The next prime is 1310400079. The reversal of 1310400044 is 4400040131.

It is a junction number, because it is equal to n+sod(n) for n = 1310399995 and 1310400031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22427 + ... + 55890.

It is an arithmetic number, because the mean of its divisors is an integer number (98680680).

Almost surely, 2^1310400044 is an apocalyptic number.

It is an amenable number.

1310400044 is a deficient number, since it is larger than the sum of its proper divisors (1057936276).

1310400044 is a wasteful number, since it uses less digits than its factorization.

1310400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78457 (or 78455 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1310400044 is about 36199.4481173401. The cubic root of 1310400044 is about 1094.2955496250.

Adding to 1310400044 its reverse (4400040131), we get a palindrome (5710440175).

The spelling of 1310400044 in words is "one billion, three hundred ten million, four hundred thousand, forty-four".