15604242 has 8 divisors (see below), whose sum is σ = 31208496. Its totient is φ = 5201412.

The previous prime is 15604223. The next prime is 15604247. The reversal of 15604242 is 24240651.

It is a sphenic number, since it is the product of 3 distinct primes.

15604242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (15604247) 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 in 3 ways as a sum of consecutive naturals, for example, 1300348 + ... + 1300359.

It is an arithmetic number, because the mean of its divisors is an integer number (3901062).

Almost surely, 2^15604242 is an apocalyptic number.

15604242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15604242 is a wasteful number, since it uses less digits than its factorization.

15604242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600712.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 15604242 is about 3950.2205001746. The cubic root of 15604242 is about 249.8892416042.

Adding to 15604242 its reverse (24240651), we get a palindrome (39844893).

The spelling of 15604242 in words is "fifteen million, six hundred four thousand, two hundred forty-two".