1812104052 has 96 divisors (see below), whose sum is σ = 4967101440. Its totient is φ = 508024320.

The previous prime is 1812104017. The next prime is 1812104053. The reversal of 1812104052 is 2504012181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812104053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125553 + ... + 139239.

It is an arithmetic number, because the mean of its divisors is an integer number (51740640).

Almost surely, 2^1812104052 is an apocalyptic number.

1812104052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1812104052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483550720).

1812104052 is an abundant number, since it is smaller than the sum of its proper divisors (3154997388).

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

1812104052 is a wasteful number, since it uses less digits than its factorization.

1812104052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13781 (or 13779 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1812104052 is about 42568.8154873964. The cubic root of 1812104052 is about 1219.1609504469.

The spelling of 1812104052 in words is "one billion, eight hundred twelve million, one hundred four thousand, fifty-two".