1821382282 has 16 divisors (see below), whose sum is σ = 2858408640. Its totient is φ = 868789152.

The previous prime is 1821382271. The next prime is 1821382291. The reversal of 1821382282 is 2822831281.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34803 + ... + 69670.

It is an arithmetic number, because the mean of its divisors is an integer number (178650540).

Almost surely, 2^1821382282 is an apocalyptic number.

1821382282 is a deficient number, since it is larger than the sum of its proper divisors (1037026358).

1821382282 is a wasteful number, since it uses less digits than its factorization.

1821382282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104877.

The product of its digits is 24576, while the sum is 37.

The square root of 1821382282 is about 42677.6555354204. The cubic root of 1821382282 is about 1221.2381683014.

The spelling of 1821382282 in words is "one billion, eight hundred twenty-one million, three hundred eighty-two thousand, two hundred eighty-two".