12002402 has 4 divisors (see below), whose sum is σ = 18003606. Its totient is φ = 6001200.

The previous prime is 12002387. The next prime is 12002407. The reversal of 12002402 is 20420021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20420021 = 23 ⋅887827.

It can be written as a sum of positive squares in only one way, i.e., 6295081 + 5707321 = 2509^2 + 2389^2 .

It is not an unprimeable number, because it can be changed into a prime (12002407) 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 as a sum of consecutive naturals, namely, 3000599 + ... + 3000602.

Almost surely, 2^12002402 is an apocalyptic number.

12002402 is a deficient number, since it is larger than the sum of its proper divisors (6001204).

12002402 is an equidigital number, since it uses as much as digits as its factorization.

12002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001203.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 12002402 is about 3464.4482966268. The cubic root of 12002402 is about 228.9581230672.

Adding to 12002402 its reverse (20420021), we get a palindrome (32422423).

The spelling of 12002402 in words is "twelve million, two thousand, four hundred two".