1812169060 has 48 divisors (see below), whose sum is σ = 4339376496. Its totient is φ = 629747712.

The previous prime is 1812169049. The next prime is 1812169087. The reversal of 1812169060 is 609612181.

It can be written as a sum of positive squares in 8 ways, for example, as 381967936 + 1430201124 = 19544^2 + 37818^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200577 + ... + 209416.

It is an arithmetic number, because the mean of its divisors is an integer number (90403677).

Almost surely, 2^1812169060 is an apocalyptic number.

1812169060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1812169060 is an abundant number, since it is smaller than the sum of its proper divisors (2527207436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1812169060 is a wasteful number, since it uses less digits than its factorization.

1812169060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410032 (or 410030 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1812169060 is about 42569.5790441954. The cubic root of 1812169060 is about 1219.1755291291.

The spelling of 1812169060 in words is "one billion, eight hundred twelve million, one hundred sixty-nine thousand, sixty".