12420335 has 16 divisors (see below), whose sum is σ = 15634080. Its totient is φ = 9461760.

The previous prime is 12420329. The next prime is 12420337. The reversal of 12420335 is 53302421.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12420335 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420337) 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, 8111 + ... + 9519.

It is an arithmetic number, because the mean of its divisors is an integer number (977130).

Almost surely, 2^12420335 is an apocalyptic number.

12420335 is a deficient number, since it is larger than the sum of its proper divisors (3213745).

12420335 is a wasteful number, since it uses less digits than its factorization.

12420335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12420335 is about 3524.2495655104. The cubic root of 12420335 is about 231.5853609984.

Adding to 12420335 its reverse (53302421), we get a palindrome (65722756).

The spelling of 12420335 in words is "twelve million, four hundred twenty thousand, three hundred thirty-five".