1383760 has 60 divisors (see below), whose sum is σ = 3753108. Its totient is φ = 473088.

The previous prime is 1383757. The next prime is 1383761. The reversal of 1383760 is 673831.

It can be written as a sum of positive squares in 2 ways, for example, as 529984 + 853776 = 728^2 + 924^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3744 + ... + 4096.

2^1383760 is an apocalyptic number.

1383760 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 1383760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876554).

1383760 is an abundant number, since it is smaller than the sum of its proper divisors (2369348).

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

1383760 is a wasteful number, since it uses less digits than its factorization.

1383760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1383760 is about 1176.3332861056. Note that the first 3 decimals coincide. The cubic root of 1383760 is about 111.4346510568.

The spelling of 1383760 in words is "one million, three hundred eighty-three thousand, seven hundred sixty".