1808855496 has 128 divisors (see below), whose sum is σ = 5753088000. Its totient is φ = 515854656.

The previous prime is 1808855479. The next prime is 1808855513. The reversal of 1808855496 is 6945588081.

It is a happy number.

1808855496 is a `hidden beast` number, since 1 + 8 + 0 + 88 + 554 + 9 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1808855479) and next prime (1808855513).

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 31 ways as a sum of consecutive naturals, for example, 1370725 + ... + 1372043.

It is an arithmetic number, because the mean of its divisors is an integer number (44946000).

Almost surely, 2^1808855496 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 1808855496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2876544000).

1808855496 is an abundant number, since it is smaller than the sum of its proper divisors (3944232504).

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

1808855496 is a wasteful number, since it uses less digits than its factorization.

1808855496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The square root of 1808855496 is about 42530.6418479665. The cubic root of 1808855496 is about 1218.4319853811.

The spelling of 1808855496 in words is "one billion, eight hundred eight million, eight hundred fifty-five thousand, four hundred ninety-six".