1816803036 has 18 divisors (see below), whose sum is σ = 4592474432. Its totient is φ = 605601000.

The previous prime is 1816803017. The next prime is 1816803067. The reversal of 1816803036 is 6303086181.

1816803036 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 50466751 = 1816803036 / (1 + 8 + 1 + 6 + 8 + 0 + 3 + 0 + 3 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25233340 + ... + 25233411.

Almost surely, 2^1816803036 is an apocalyptic number.

It is an amenable number.

1816803036 is an abundant number, since it is smaller than the sum of its proper divisors (2775671396).

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

1816803036 is a wasteful number, since it uses less digits than its factorization.

1816803036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50466761 (or 50466756 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1816803036 is about 42623.9725506668. The cubic root of 1816803036 is about 1220.2138467743.

The spelling of 1816803036 in words is "one billion, eight hundred sixteen million, eight hundred three thousand, thirty-six".