1300444066 has 4 divisors (see below), whose sum is σ = 1950666102. Its totient is φ = 650222032.

The previous prime is 1300444051. The next prime is 1300444073. The reversal of 1300444066 is 6604440031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 889530625 + 410913441 = 29825^2 + 20271^2 .

It is a super-3 number, since 3×1300444066³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325111015 + ... + 325111018.

Almost surely, 2^1300444066 is an apocalyptic number.

1300444066 is a deficient number, since it is larger than the sum of its proper divisors (650222036).

1300444066 is an equidigital number, since it uses as much as digits as its factorization.

1300444066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650222035.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1300444066 is about 36061.6703162790. The cubic root of 1300444066 is about 1091.5171382659.

Adding to 1300444066 its reverse (6604440031), we get a palindrome (7904884097).

The spelling of 1300444066 in words is "one billion, three hundred million, four hundred forty-four thousand, sixty-six".