1822218382 has 4 divisors (see below), whose sum is σ = 2733327576. Its totient is φ = 911109190.

The previous prime is 1822218373. The next prime is 1822218383. The reversal of 1822218382 is 2838122281.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822218383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455554594 + ... + 455554597.

It is an arithmetic number, because the mean of its divisors is an integer number (683331894).

Almost surely, 2^1822218382 is an apocalyptic number.

1822218382 is a deficient number, since it is larger than the sum of its proper divisors (911109194).

1822218382 is an equidigital number, since it uses as much as digits as its factorization.

1822218382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911109193.

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

The square root of 1822218382 is about 42687.4499355490. The cubic root of 1822218382 is about 1221.4250082712.

The spelling of 1822218382 in words is "one billion, eight hundred twenty-two million, two hundred eighteen thousand, three hundred eighty-two".