1310400042 has 24 divisors (see below), whose sum is σ = 3048686496. Its totient is φ = 374399928.

The previous prime is 1310400011. The next prime is 1310400079. The reversal of 1310400042 is 2400040131.

It is a junction number, because it is equal to n+sod(n) for n = 1310399994 and 1310400030.

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, 2228278 + ... + 2228865.

It is an arithmetic number, because the mean of its divisors is an integer number (127028604).

Almost surely, 2^1310400042 is an apocalyptic number.

1310400042 is an abundant number, since it is smaller than the sum of its proper divisors (1738286454).

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

1310400042 is a wasteful number, since it uses less digits than its factorization.

1310400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457162 (or 4457155 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1310400042 is about 36199.4480897154. The cubic root of 1310400042 is about 1094.2955490682.

Adding to 1310400042 its reverse (2400040131), we get a palindrome (3710440173).

The spelling of 1310400042 in words is "one billion, three hundred ten million, four hundred thousand, forty-two".