1320600144 has 40 divisors (see below), whose sum is σ = 3529193760. Its totient is φ = 425020288.

The previous prime is 1320600143. The next prime is 1320600191. The reversal of 1320600144 is 4410060231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320600144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320600143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472962 + ... + 475745.

It is an arithmetic number, because the mean of its divisors is an integer number (88229844).

Almost surely, 2^1320600144 is an apocalyptic number.

It is an amenable number.

1320600144 is an abundant number, since it is smaller than the sum of its proper divisors (2208593616).

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

1320600144 is a wasteful number, since it uses less digits than its factorization.

1320600144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948747 (or 948741 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1320600144 is about 36340.0625205846. The cubic root of 1320600144 is about 1097.1275314467.

Adding to 1320600144 its reverse (4410060231), we get a palindrome (5730660375).

The spelling of 1320600144 in words is "one billion, three hundred twenty million, six hundred thousand, one hundred forty-four".