1812436052 has 12 divisors (see below), whose sum is σ = 3624872160. Its totient is φ = 776758296.

The previous prime is 1812436013. The next prime is 1812436069. The reversal of 1812436052 is 2506342181.

1812436052 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32364902 + ... + 32364957.

It is an arithmetic number, because the mean of its divisors is an integer number (302072680).

Almost surely, 2^1812436052 is an apocalyptic number.

It is an amenable number.

1812436052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1812436052 is a wasteful number, since it uses less digits than its factorization.

1812436052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64729870 (or 64729868 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1812436052 is about 42572.7148770195. The cubic root of 1812436052 is about 1219.2354010501.

The spelling of 1812436052 in words is "one billion, eight hundred twelve million, four hundred thirty-six thousand, fifty-two".