1808496396 has 144 divisors (see below), whose sum is σ = 5462096640. Its totient is φ = 512516160.

The previous prime is 1808496359. The next prime is 1808496427. The reversal of 1808496396 is 6936948081.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 890310 + ... + 892338.

Almost surely, 2^1808496396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1808496396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2731048320).

1808496396 is an abundant number, since it is smaller than the sum of its proper divisors (3653600244).

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

1808496396 is a wasteful number, since it uses less digits than its factorization.

1808496396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 1808496396 is about 42526.4199762924. The cubic root of 1808496396 is about 1218.3513509903.

The spelling of 1808496396 in words is "one billion, eight hundred eight million, four hundred ninety-six thousand, three hundred ninety-six".