1819136 has 80 divisors (see below), whose sum is σ = 4419360. Its totient is φ = 737280.

The previous prime is 1819123. The next prime is 1819151. The reversal of 1819136 is 6319181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1819099 and 1819108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95735 + ... + 95753.

It is an arithmetic number, because the mean of its divisors is an integer number (55242).

2^1819136 is an apocalyptic number.

1819136 is a gapful number since it is divisible by the number (16) 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 1819136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2209680).

1819136 is an abundant number, since it is smaller than the sum of its proper divisors (2600224).

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

1819136 is a wasteful number, since it uses less digits than its factorization.

1819136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 49 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 1819136 is about 1348.7534986053. The cubic root of 1819136 is about 122.0735917191.

The spelling of 1819136 in words is "one million, eight hundred nineteen thousand, one hundred thirty-six".