1383710720 has 240 divisors, whose sum is σ = 4026408960. Its totient is φ = 445906944.

The previous prime is 1383710711. The next prime is 1383710729. The reversal of 1383710720 is 270173831.

It is an interprime number because it is at equal distance from previous prime (1383710711) and next prime (1383710729).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383710729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10895297 + ... + 10895423.

It is an arithmetic number, because the mean of its divisors is an integer number (16776704).

Almost surely, 2^1383710720 is an apocalyptic number.

1383710720 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 1383710720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2013204480).

1383710720 is an abundant number, since it is smaller than the sum of its proper divisors (2642698240).

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

1383710720 is an equidigital number, since it uses as much as digits as its factorization.

1383710720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1383710720 is about 37198.2623250065. The cubic root of 1383710720 is about 1114.3332819617. Note that the first 3 decimals are identical.

The spelling of 1383710720 in words is "one billion, three hundred eighty-three million, seven hundred ten thousand, seven hundred twenty".