1820337122 has 6 divisors (see below), whose sum is σ = 2730596193. Its totient is φ = 910138392.

The previous prime is 1820337109. The next prime is 1820337131. The reversal of 1820337122 is 2217330281.

It can be written as a sum of positive squares in 2 ways, for example, as 1808715841 + 11621281 = 42529^2 + 3409^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=30169.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 45254 + ... + 75422.

Almost surely, 2^1820337122 is an apocalyptic number.

1820337122 is a deficient number, since it is larger than the sum of its proper divisors (910259071).

1820337122 is an frugal number, since it uses more digits than its factorization.

1820337122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60340 (or 30171 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1820337122 is about 42665.4089632339. The cubic root of 1820337122 is about 1221.0045300885.

The spelling of 1820337122 in words is "one billion, eight hundred twenty million, three hundred thirty-seven thousand, one hundred twenty-two".