1840491936 has 96 divisors (see below), whose sum is σ = 5390985600. Its totient is φ = 610882560.

The previous prime is 1840491929. The next prime is 1840491937. The reversal of 1840491936 is 6391940481.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 1840491891 and 1840491900.

It is not an unprimeable number, because it can be changed into a prime (1840491937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203805 + ... + 212643.

It is an arithmetic number, because the mean of its divisors is an integer number (56156100).

Almost surely, 2^1840491936 is an apocalyptic number.

1840491936 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 1840491936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695492800).

1840491936 is an abundant number, since it is smaller than the sum of its proper divisors (3550493664).

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

1840491936 is a wasteful number, since it uses less digits than its factorization.

1840491936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099 (or 9085 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1840491936 is about 42900.9549544063. The cubic root of 1840491936 is about 1225.4943302174.

The spelling of 1840491936 in words is "one billion, eight hundred forty million, four hundred ninety-one thousand, nine hundred thirty-six".