15242938 has 8 divisors (see below), whose sum is σ = 22881600. Its totient is φ = 7615740.

The previous prime is 15242933. The next prime is 15242957. The reversal of 15242938 is 83924251.

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

It is not an unprimeable number, because it can be changed into a prime (15242933) 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 3 ways as a sum of consecutive naturals, for example, 2383 + ... + 6013.

It is an arithmetic number, because the mean of its divisors is an integer number (2860200).

Almost surely, 2^15242938 is an apocalyptic number.

15242938 is a deficient number, since it is larger than the sum of its proper divisors (7638662).

15242938 is a wasteful number, since it uses less digits than its factorization.

15242938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732.

The product of its digits is 17280, while the sum is 34.

The square root of 15242938 is about 3904.2205368037. The cubic root of 15242938 is about 247.9454983424.

The spelling of 15242938 in words is "fifteen million, two hundred forty-two thousand, nine hundred thirty-eight".