1382320 has 40 divisors (see below), whose sum is σ = 3307824. Its totient is φ = 536832.

The previous prime is 1382309. The next prime is 1382327. The reversal of 1382320 is 232831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1382327) 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, 2727 + ... + 3193.

2^1382320 is an apocalyptic number.

1382320 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 1382320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1653912).

1382320 is an abundant number, since it is smaller than the sum of its proper divisors (1925504).

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

1382320 is a wasteful number, since it uses less digits than its factorization.

1382320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1382320 is about 1175.7210553528. The cubic root of 1382320 is about 111.3959830815.

The spelling of 1382320 in words is "one million, three hundred eighty-two thousand, three hundred twenty".