1802730330 has 40 divisors (see below), whose sum is σ = 4847343732. Its totient is φ = 480727872.

The previous prime is 1802730299. The next prime is 1802730359. The reversal of 1802730330 is 330372081.

It can be written as a sum of positive squares in 2 ways, for example, as 1692417321 + 110313009 = 41139^2 + 10503^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1802730294 and 1802730303.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1111987 + ... + 1113606.

Almost surely, 2^1802730330 is an apocalyptic number.

1802730330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1802730330 is an abundant number, since it is smaller than the sum of its proper divisors (3044613402).

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

1802730330 is a wasteful number, since it uses less digits than its factorization.

1802730330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225612 (or 2225603 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1802730330 is about 42458.5719260552. The cubic root of 1802730330 is about 1217.0551409355.

The spelling of 1802730330 in words is "one billion, eight hundred two million, seven hundred thirty thousand, three hundred thirty".