1316712400 has 30 divisors (see below), whose sum is σ = 3163402502. Its totient is φ = 526684800.

The previous prime is 1316712391. The next prime is 1316712401. The reversal of 1316712400 is 42176131.

It can be written as a sum of positive squares in 3 ways, for example, as 283989904 + 1032722496 = 16852^2 + 32136^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316712401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1645491 + ... + 1646290.

Almost surely, 2^1316712400 is an apocalyptic number.

1316712400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316712400 is an abundant number, since it is smaller than the sum of its proper divisors (1846690102).

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

1316712400 is a wasteful number, since it uses less digits than its factorization.

1316712400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291799 (or 3291788 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1316712400 is about 36286.5319367944. The cubic root of 1316712400 is about 1096.0498538780.

Adding to 1316712400 its reverse (42176131), we get a palindrome (1358888531).

The spelling of 1316712400 in words is "one billion, three hundred sixteen million, seven hundred twelve thousand, four hundred".