1803948336 has 120 divisors (see below), whose sum is σ = 5359545360. Its totient is φ = 564461568.

The previous prime is 1803948329. The next prime is 1803948337. The reversal of 1803948336 is 6338493081.

1803948336 is a `hidden beast` number, since 180 + 394 + 83 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1803948291 and 1803948300.

It is not an unprimeable number, because it can be changed into a prime (1803948337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1279600 + ... + 1281008.

It is an arithmetic number, because the mean of its divisors is an integer number (44662878).

Almost surely, 2^1803948336 is an apocalyptic number.

1803948336 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 1803948336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679772680).

1803948336 is an abundant number, since it is smaller than the sum of its proper divisors (3555597024).

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

1803948336 is a wasteful number, since it uses less digits than its factorization.

1803948336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1803948336 is about 42472.9129681495. The cubic root of 1803948336 is about 1217.3291783608.

The spelling of 1803948336 in words is "one billion, eight hundred three million, nine hundred forty-eight thousand, three hundred thirty-six".