15342938 has 32 divisors (see below), whose sum is σ = 26142480. Its totient is φ = 6704640.

The previous prime is 15342931. The next prime is 15342941. The reversal of 15342938 is 83924351.

It can be written as a sum of positive squares in 8 ways, for example, as 2289169 + 13053769 = 1513^2 + 3613^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15342898 and 15342907.

It is not an unprimeable number, because it can be changed into a prime (15342931) 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 15 ways as a sum of consecutive naturals, for example, 39248 + ... + 39636.

Almost surely, 2^15342938 is an apocalyptic number.

15342938 is a deficient number, since it is larger than the sum of its proper divisors (10799542).

15342938 is a wasteful number, since it uses less digits than its factorization.

15342938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482.

The product of its digits is 25920, while the sum is 35.

The square root of 15342938 is about 3917.0062547818. The cubic root of 15342938 is about 248.4865254013.

The spelling of 15342938 in words is "fifteen million, three hundred forty-two thousand, nine hundred thirty-eight".