1382664 has 32 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 451776.

The previous prime is 1382663. The next prime is 1382671. The reversal of 1382664 is 4662831.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1382663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729 + ... + 1815.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^1382664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1382664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762560).

1382664 is an abundant number, since it is smaller than the sum of its proper divisors (2142456).

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

1382664 is a wasteful number, since it uses less digits than its factorization.

1382664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1145 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1382664 is about 1175.8673394563. The cubic root of 1382664 is about 111.4052228716.

The spelling of 1382664 in words is "one million, three hundred eighty-two thousand, six hundred sixty-four".