12404642 has 16 divisors (see below), whose sum is σ = 18960480. Its totient is φ = 6085728.

The previous prime is 12404629. The next prime is 12404647. The reversal of 12404642 is 24640421.

It is not an unprimeable number, because it can be changed into a prime (12404647) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 40253 + ... + 40559.

It is an arithmetic number, because the mean of its divisors is an integer number (1185030).

Almost surely, 2^12404642 is an apocalyptic number.

12404642 is a deficient number, since it is larger than the sum of its proper divisors (6555838).

12404642 is a wasteful number, since it uses less digits than its factorization.

12404642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 12404642 is about 3522.0224303658. The cubic root of 12404642 is about 231.4877844363.

The spelling of 12404642 in words is "twelve million, four hundred four thousand, six hundred forty-two".