1802730 has 16 divisors (see below), whose sum is σ = 4326624. Its totient is φ = 480720.

The previous prime is 1802719. The next prime is 1802737. The reversal of 1802730 is 372081.

It is a junction number, because it is equal to n+sod(n) for n = 1802697 and 1802706.

It is not an unprimeable number, because it can be changed into a prime (1802737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30016 + ... + 30075.

It is an arithmetic number, because the mean of its divisors is an integer number (270414).

2^1802730 is an apocalyptic number.

1802730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1802730 is an abundant number, since it is smaller than the sum of its proper divisors (2523894).

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

1802730 is a wasteful number, since it uses less digits than its factorization.

1802730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60101.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1802730 is about 1342.6578119536. The cubic root of 1802730 is about 121.7055066673.

The spelling of 1802730 in words is "one million, eight hundred two thousand, seven hundred thirty".