12402420404 has 12 divisors (see below), whose sum is σ = 23677348128. Its totient is φ = 5637463800.

The previous prime is 12402420403. The next prime is 12402420409. The reversal of 12402420404 is 40402420421.

It is a self number, because there is not a number n which added to its sum of digits gives 12402420404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402420403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140936552 + ... + 140936639.

It is an arithmetic number, because the mean of its divisors is an integer number (1973112344).

Almost surely, 2^12402420404 is an apocalyptic number.

It is an amenable number.

12402420404 is a deficient number, since it is larger than the sum of its proper divisors (11274927724).

12402420404 is a wasteful number, since it uses less digits than its factorization.

12402420404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281873206 (or 281873204 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 12402420404 its reverse (40402420421), we get a palindrome (52804840825).

The spelling of 12402420404 in words is "twelve billion, four hundred two million, four hundred twenty thousand, four hundred four".