1802130000 has 400 divisors, whose sum is σ = 6545104896. Its totient is φ = 423360000.

The previous prime is 1802129981. The next prime is 1802130019. The reversal of 1802130000 is 312081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1802129981) and next prime (1802130019).

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14189937 + ... + 14190063.

Almost surely, 2^1802130000 is an apocalyptic number.

1802130000 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 1802130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3272552448).

1802130000 is an abundant number, since it is smaller than the sum of its proper divisors (4742974896).

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

1802130000 is a wasteful number, since it uses less digits than its factorization.

1802130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1802130000 is about 42451.5017402212. The cubic root of 1802130000 is about 1216.9200281348.

Adding to 1802130000 its reverse (312081), we get a palindrome (1802442081).

The spelling of 1802130000 in words is "one billion, eight hundred two million, one hundred thirty thousand".