12290730 has 16 divisors (see below), whose sum is σ = 29497824. Its totient is φ = 3277520.

The previous prime is 12290713. The next prime is 12290737. The reversal of 12290730 is 3709221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12290730.

It is not an unprimeable number, because it can be changed into a prime (12290737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204816 + ... + 204875.

It is an arithmetic number, because the mean of its divisors is an integer number (1843614).

Almost surely, 2^12290730 is an apocalyptic number.

12290730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12290730 is an abundant number, since it is smaller than the sum of its proper divisors (17207094).

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

12290730 is a wasteful number, since it uses less digits than its factorization.

12290730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409701.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 12290730 is about 3505.8137429133. The cubic root of 12290730 is about 230.7770191389. Note that the first 3 decimals are identical.

Adding to 12290730 its reverse (3709221), we get a palindrome (15999951).

The spelling of 12290730 in words is "twelve million, two hundred ninety thousand, seven hundred thirty".