1808053920 has 384 divisors, whose sum is σ = 6827950080. Its totient is φ = 445547520.

The previous prime is 1808053909. The next prime is 1808053937. The reversal of 1808053920 is 293508081.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3079867 + ... + 3080453.

It is an arithmetic number, because the mean of its divisors is an integer number (17781120).

Almost surely, 2^1808053920 is an apocalyptic number.

1808053920 is a gapful number since it is divisible by the number (10) 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 1808053920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3413975040).

1808053920 is an abundant number, since it is smaller than the sum of its proper divisors (5019896160).

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

1808053920 is a wasteful number, since it uses less digits than its factorization.

1808053920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1808053920 is about 42521.2172920767. The cubic root of 1808053920 is about 1218.2519801897.

The spelling of 1808053920 in words is "one billion, eight hundred eight million, fifty-three thousand, nine hundred twenty".