12016402 has 4 divisors (see below), whose sum is σ = 18024606. Its totient is φ = 6008200.

The previous prime is 12016397. The next prime is 12016423. The reversal of 12016402 is 20461021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10297681 + 1718721 = 3209^2 + 1311^2 .

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, 3004099 + ... + 3004102.

Almost surely, 2^12016402 is an apocalyptic number.

12016402 is a deficient number, since it is larger than the sum of its proper divisors (6008204).

12016402 is an equidigital number, since it uses as much as digits as its factorization.

12016402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008203.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12016402 is about 3466.4682315002. The cubic root of 12016402 is about 229.0471099280.

Adding to 12016402 its reverse (20461021), we get a palindrome (32477423).

The spelling of 12016402 in words is "twelve million, sixteen thousand, four hundred two".