1821482 has 24 divisors (see below), whose sum is σ = 3142476. Its totient is φ = 788736.

The previous prime is 1821481. The next prime is 1821487. The reversal of 1821482 is 2841281.

It can be written as a sum of positive squares in 6 ways, for example, as 128881 + 1692601 = 359^2 + 1301^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1821481) 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, 5588 + ... + 5904.

2^1821482 is an apocalyptic number.

1821482 is a deficient number, since it is larger than the sum of its proper divisors (1320994).

1821482 is a wasteful number, since it uses less digits than its factorization.

1821482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 349 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

The square root of 1821482 is about 1349.6229102975. The cubic root of 1821482 is about 122.1260454892.

The spelling of 1821482 in words is "one million, eight hundred twenty-one thousand, four hundred eighty-two".