1802250000 has 350 divisors, whose sum is σ = 6593470290. Its totient is φ = 475200000.

The previous prime is 1802249987. The next prime is 1802250017. The reversal of 1802250000 is 522081.

It can be written as a sum of positive squares in 7 ways, for example, as 1731891456 + 70358544 = 41616^2 + 8388^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 69 ways as a sum of consecutive naturals, for example, 20249956 + ... + 20250044.

Almost surely, 2^1802250000 is an apocalyptic number.

1802250000 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 1802250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3296735145).

1802250000 is an abundant number, since it is smaller than the sum of its proper divisors (4791220290).

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

1802250000 is an frugal number, since it uses more digits than its factorization.

1802250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1802250000 is about 42452.9150942547. The cubic root of 1802250000 is about 1216.9470382399.

Adding to 1802250000 its reverse (522081), we get a palindrome (1802772081).

The spelling of 1802250000 in words is "one billion, eight hundred two million, two hundred fifty thousand".