1806730 has 16 divisors (see below), whose sum is σ = 3294720. Its totient is φ = 713232.

The previous prime is 1806713. The next prime is 1806733. The reversal of 1806730 is 376081.

It is a junction number, because it is equal to n+sod(n) for n = 1806695 and 1806704.

It is not an unprimeable number, because it can be changed into a prime (1806733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354 + ... + 1933.

It is an arithmetic number, because the mean of its divisors is an integer number (205920).

2^1806730 is an apocalyptic number.

1806730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1806730 is a deficient number, since it is larger than the sum of its proper divisors (1487990).

1806730 is a wasteful number, since it uses less digits than its factorization.

1806730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1806730 is about 1344.1465693889. The cubic root of 1806730 is about 121.7954558752.

The spelling of 1806730 in words is "one million, eight hundred six thousand, seven hundred thirty".