12240402 has 16 divisors (see below), whose sum is σ = 24661152. Its totient is φ = 4050080.

The previous prime is 12240401. The next prime is 12240409. The reversal of 12240402 is 20404221.

It is a super-2 number, since 2×12240402² = 299654882243208, which contains 22 as substring.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12240401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6624 + ... + 8267.

It is an arithmetic number, because the mean of its divisors is an integer number (1541322).

Almost surely, 2^12240402 is an apocalyptic number.

12240402 is an abundant number, since it is smaller than the sum of its proper divisors (12420750).

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

12240402 is a wasteful number, since it uses less digits than its factorization.

12240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15033.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12240402 is about 3498.6285884615. The cubic root of 12240402 is about 230.4615934742.

Adding to 12240402 its reverse (20404221), we get a palindrome (32644623).

The spelling of 12240402 in words is "twelve million, two hundred forty thousand, four hundred two".