1606730 has 32 divisors (see below), whose sum is σ = 3068928. Its totient is φ = 604800.

The previous prime is 1606723. The next prime is 1606733. The reversal of 1606730 is 376061.

It is a junction number, because it is equal to n+sod(n) for n = 1606696 and 1606705.

It is not an unprimeable number, because it can be changed into a prime (1606733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21974 + ... + 22046.

It is an arithmetic number, because the mean of its divisors is an integer number (95904).

2^1606730 is an apocalyptic number.

1606730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1606730 is a deficient number, since it is larger than the sum of its proper divisors (1462198).

1606730 is a wasteful number, since it uses less digits than its factorization.

1606730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1606730 is about 1267.5685385809. The cubic root of 1606730 is about 117.1244688000.

The spelling of 1606730 in words is "one million, six hundred six thousand, seven hundred thirty".