1816536 has 16 divisors (see below), whose sum is σ = 4541400. Its totient is φ = 605504.

The previous prime is 1816523. The next prime is 1816543. The reversal of 1816536 is 6356181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37821 + ... + 37868.

2^1816536 is an apocalyptic number.

It is an amenable number.

1816536 is an abundant number, since it is smaller than the sum of its proper divisors (2724864).

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

1816536 is a wasteful number, since it uses less digits than its factorization.

1816536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75698 (or 75694 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1816536 is about 1347.7893010408. The cubic root of 1816536 is about 122.0154060989.

The spelling of 1816536 in words is "one million, eight hundred sixteen thousand, five hundred thirty-six".