15338842 has 4 divisors (see below), whose sum is σ = 23008266. Its totient is φ = 7669420.

The previous prime is 15338839. The next prime is 15338857. The reversal of 15338842 is 24883351.

It is a happy number.

15338842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13920361 + 1418481 = 3731^2 + 1191^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15338798 and 15338807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834709 + ... + 3834712.

Almost surely, 2^15338842 is an apocalyptic number.

15338842 is a deficient number, since it is larger than the sum of its proper divisors (7669424).

15338842 is an equidigital number, since it uses as much as digits as its factorization.

15338842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669423.

The product of its digits is 23040, while the sum is 34.

The square root of 15338842 is about 3916.4833715975. The cubic root of 15338842 is about 248.4644111797.

The spelling of 15338842 in words is "fifteen million, three hundred thirty-eight thousand, eight hundred forty-two".