1383300720 has 160 divisors (see below), whose sum is σ = 4777194240. Its totient is φ = 367914240.

The previous prime is 1383300697. The next prime is 1383300733. The reversal of 1383300720 is 270033831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1267375 + ... + 1268465.

It is an arithmetic number, because the mean of its divisors is an integer number (29857464).

Almost surely, 2^1383300720 is an apocalyptic number.

1383300720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383300720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2388597120).

1383300720 is an abundant number, since it is smaller than the sum of its proper divisors (3393893520).

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

1383300720 is a wasteful number, since it uses less digits than its factorization.

1383300720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1383300720 is about 37192.7509065947. The cubic root of 1383300720 is about 1114.2232103571.

The spelling of 1383300720 in words is "one billion, three hundred eighty-three million, three hundred thousand, seven hundred twenty".