12280402 has 16 divisors (see below), whose sum is σ = 19482624. Its totient is φ = 5796000.

The previous prime is 12280399. The next prime is 12280417. The reversal of 12280402 is 20408221.

12280402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12280402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127 + ... + 4957.

It is an arithmetic number, because the mean of its divisors is an integer number (1217664).

Almost surely, 2^12280402 is an apocalyptic number.

12280402 is a deficient number, since it is larger than the sum of its proper divisors (7202222).

12280402 is a wasteful number, since it uses less digits than its factorization.

12280402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 12280402 is about 3504.3404514973. The cubic root of 12280402 is about 230.7123597579.

Adding to 12280402 its reverse (20408221), we get a palindrome (32688623).

The spelling of 12280402 in words is "twelve million, two hundred eighty thousand, four hundred two".