1820230080 has 112 divisors (see below), whose sum is σ = 5836761504. Its totient is φ = 480563200.

The previous prime is 1820230079. The next prime is 1820230081. The reversal of 1820230080 is 800320281.

It is an interprime number because it is at equal distance from previous prime (1820230079) and next prime (1820230081).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1820230080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820230081) 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, 87574 + ... + 106346.

It is an arithmetic number, because the mean of its divisors is an integer number (52113942).

Almost surely, 2^1820230080 is an apocalyptic number.

1820230080 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 1820230080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2918380752).

1820230080 is an abundant number, since it is smaller than the sum of its proper divisors (4016531424).

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

1820230080 is a wasteful number, since it uses less digits than its factorization.

1820230080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18894 (or 18884 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1820230080 is about 42664.1545093771. The cubic root of 1820230080 is about 1220.9805965494.

The spelling of 1820230080 in words is "one billion, eight hundred twenty million, two hundred thirty thousand, eighty".