12285730 has 16 divisors (see below), whose sum is σ = 23415480. Its totient is φ = 4625152.

The previous prime is 12285709. The next prime is 12285731. The reversal of 12285730 is 3758221.

It can be written as a sum of positive squares in 4 ways, for example, as 10361961 + 1923769 = 3219^2 + 1387^2 .

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12285731) 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, 35965 + ... + 36304.

Almost surely, 2^12285730 is an apocalyptic number.

12285730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12285730 is a deficient number, since it is larger than the sum of its proper divisors (11129750).

12285730 is a wasteful number, since it uses less digits than its factorization.

12285730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72293.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 12285730 is about 3505.1005691706. The cubic root of 12285730 is about 230.7457207104.

The spelling of 12285730 in words is "twelve million, two hundred eighty-five thousand, seven hundred thirty".