1819166422 has 8 divisors (see below), whose sum is σ = 2729696400. Its totient is φ = 909267624.

The previous prime is 1819166407. The next prime is 1819166467. The reversal of 1819166422 is 2246619181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150522 + ... + 162157.

It is an arithmetic number, because the mean of its divisors is an integer number (341212050).

Almost surely, 2^1819166422 is an apocalyptic number.

1819166422 is a deficient number, since it is larger than the sum of its proper divisors (910529978).

1819166422 is a wasteful number, since it uses less digits than its factorization.

1819166422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315590.

The product of its digits is 41472, while the sum is 40.

The square root of 1819166422 is about 42651.6872116450. The cubic root of 1819166422 is about 1220.7427220734.

The spelling of 1819166422 in words is "one billion, eight hundred nineteen million, one hundred sixty-six thousand, four hundred twenty-two".