1373216800 has 36 divisors (see below), whose sum is σ = 3352367466. Its totient is φ = 549286400.

The previous prime is 1373216777. The next prime is 1373216843. The reversal of 1373216800 is 86123731.

It can be written as a sum of positive squares in 3 ways, for example, as 1018120464 + 355096336 = 31908^2 + 18844^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857461 + ... + 859060.

Almost surely, 2^1373216800 is an apocalyptic number.

1373216800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373216800 is an abundant number, since it is smaller than the sum of its proper divisors (1979150666).

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

1373216800 is a wasteful number, since it uses less digits than its factorization.

1373216800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716541 (or 1716528 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1373216800 is about 37056.9399708071. The cubic root of 1373216800 is about 1111.5091341436.

The spelling of 1373216800 in words is "one billion, three hundred seventy-three million, two hundred sixteen thousand, eight hundred".