1368205000 has 40 divisors (see below), whose sum is σ = 3205716030. Its totient is φ = 547280000.

The previous prime is 1368204997. The next prime is 1368205001. The reversal of 1368205000 is 5028631.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 18818244 + 1349386756 = 4338^2 + 36734^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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

It is not an unprimeable number, because it can be changed into a prime (1368205001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 131821 + ... + 141820.

Almost surely, 2^1368205000 is an apocalyptic number.

1368205000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1368205000 is an abundant number, since it is smaller than the sum of its proper divisors (1837511030).

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

1368205000 is an equidigital number, since it uses as much as digits as its factorization.

1368205000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273667 (or 273648 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1368205000 is about 36989.2551966108. The cubic root of 1368205000 is about 1110.1552687053.

The spelling of 1368205000 in words is "one billion, three hundred sixty-eight million, two hundred five thousand".