15242666 has 8 divisors (see below), whose sum is σ = 22949184. Its totient is φ = 7592940.

The previous prime is 15242657. The next prime is 15242671. The reversal of 15242666 is 66624251.

15242666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13520 + ... + 14603.

It is an arithmetic number, because the mean of its divisors is an integer number (2868648).

Almost surely, 2^15242666 is an apocalyptic number.

15242666 is a deficient number, since it is larger than the sum of its proper divisors (7706518).

15242666 is a wasteful number, since it uses less digits than its factorization.

15242666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28396.

The product of its digits is 17280, while the sum is 32.

The square root of 15242666 is about 3904.1857025505. The cubic root of 15242666 is about 247.9440235267.

The spelling of 15242666 in words is "fifteen million, two hundred forty-two thousand, six hundred sixty-six".