12042730 has 32 divisors (see below), whose sum is σ = 25286400. Its totient is φ = 4127760.

The previous prime is 12042721. The next prime is 12042739. The reversal of 12042730 is 3724021.

It is an interprime number because it is at equal distance from previous prime (12042721) and next prime (12042739).

It is a junction number, because it is equal to n+sod(n) for n = 12042698 and 12042707.

It is not an unprimeable number, because it can be changed into a prime (12042739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (790200).

Almost surely, 2^12042730 is an apocalyptic number.

12042730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12042730 is an abundant number, since it is smaller than the sum of its proper divisors (13243670).

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

12042730 is an equidigital number, since it uses as much as digits as its factorization.

12042730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539 (or 3525 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 12042730 is about 3470.2636787426. The cubic root of 12042730 is about 229.2142690462.

Adding to 12042730 its reverse (3724021), we get a palindrome (15766751).

The spelling of 12042730 in words is "twelve million, forty-two thousand, seven hundred thirty".