1840036 has 48 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 756000.

The previous prime is 1840031. The next prime is 1840043. The reversal of 1840036 is 6300481.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1839989 and 1840016.

It is not an unprimeable number, because it can be changed into a prime (1840031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25881 + ... + 25951.

It is an arithmetic number, because the mean of its divisors is an integer number (80640).

2^1840036 is an apocalyptic number.

It is an amenable number.

1840036 is an abundant number, since it is smaller than the sum of its proper divisors (2030684).

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

1840036 is a wasteful number, since it uses less digits than its factorization.

1840036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1840036 is about 1356.4792663362. The cubic root of 1840036 is about 122.5393126636.

1840036 divided by its sum of digits (22) gives a palindrome (83638).

The spelling of 1840036 in words is "one million, eight hundred forty thousand, thirty-six".