12240356 has 6 divisors (see below), whose sum is σ = 21420630. Its totient is φ = 6120176.

The previous prime is 12240343. The next prime is 12240379. The reversal of 12240356 is 65304221.

It can be written as a sum of positive squares in only one way, i.e., 10137856 + 2102500 = 3184^2 + 1450^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1530041 + ... + 1530048.

It is an arithmetic number, because the mean of its divisors is an integer number (3570105).

Almost surely, 2^12240356 is an apocalyptic number.

It is an amenable number.

12240356 is a deficient number, since it is larger than the sum of its proper divisors (9180274).

12240356 is a wasteful number, since it uses less digits than its factorization.

12240356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060093 (or 3060091 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12240356 is about 3498.6220144508. The cubic root of 12240356 is about 230.4613047787.

Adding to 12240356 its reverse (65304221), we get a palindrome (77544577).

The spelling of 12240356 in words is "twelve million, two hundred forty thousand, three hundred fifty-six".