1813183320 has 64 divisors (see below), whose sum is σ = 5857981920. Its totient is φ = 446321664.

The previous prime is 1813183301. The next prime is 1813183321. The reversal of 1813183320 is 233813181.

1813183320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813183321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579589 + ... + 582708.

Almost surely, 2^1813183320 is an apocalyptic number.

1813183320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1813183320 is an abundant number, since it is smaller than the sum of its proper divisors (4044798600).

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

1813183320 is a wasteful number, since it uses less digits than its factorization.

1813183320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162324 (or 1162320 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1813183320 is about 42581.4903449844. The cubic root of 1813183320 is about 1219.4029417498.

The spelling of 1813183320 in words is "one billion, eight hundred thirteen million, one hundred eighty-three thousand, three hundred twenty".