1816632 has 48 divisors (see below), whose sum is σ = 5138640. Its totient is φ = 578688.

The previous prime is 1816627. The next prime is 1816643. The reversal of 1816632 is 2366181.

1816632 is a `hidden beast` number, since 18 + 16 + 632 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1816596 and 1816605.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1108 + ... + 2204.

It is an arithmetic number, because the mean of its divisors is an integer number (107055).

2^1816632 is an apocalyptic number.

1816632 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 1816632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2569320).

1816632 is an abundant number, since it is smaller than the sum of its proper divisors (3322008).

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

1816632 is a wasteful number, since it uses less digits than its factorization.

1816632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1125 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1816632 is about 1347.8249144455. The cubic root of 1816632 is about 122.0175554778.

The spelling of 1816632 in words is "one million, eight hundred sixteen thousand, six hundred thirty-two".