1021382 has 4 divisors (see below), whose sum is σ = 1532076. Its totient is φ = 510690.

The previous prime is 1021381. The next prime is 1021387. The reversal of 1021382 is 2831201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2831201 = 811 ⋅3491.

It is a self number, because there is not a number n which added to its sum of digits gives 1021382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255344 + ... + 255347.

It is an arithmetic number, because the mean of its divisors is an integer number (383019).

2^1021382 is an apocalyptic number.

1021382 is a deficient number, since it is larger than the sum of its proper divisors (510694).

1021382 is an equidigital number, since it uses as much as digits as its factorization.

1021382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510693.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1021382 is about 1010.6344541920. The cubic root of 1021382 is about 100.7077129418.

Adding to 1021382 its reverse (2831201), we get a palindrome (3852583).

The spelling of 1021382 in words is "one million, twenty-one thousand, three hundred eighty-two".