15315342 has 48 divisors (see below), whose sum is σ = 36024912. Its totient is φ = 4327680.

The previous prime is 15315281. The next prime is 15315347. The reversal of 15315342 is 24351351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15315347) 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 23 ways as a sum of consecutive naturals, for example, 32992 + ... + 33452.

It is an arithmetic number, because the mean of its divisors is an integer number (750519).

Almost surely, 2^15315342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15315342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18012456).

15315342 is an abundant number, since it is smaller than the sum of its proper divisors (20709570).

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

15315342 is a wasteful number, since it uses less digits than its factorization.

15315342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 586 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 15315342 is about 3913.4820812162. The cubic root of 15315342 is about 248.3374590049.

Adding to 15315342 its reverse (24351351), we get a palindrome (39666693).

The spelling of 15315342 in words is "fifteen million, three hundred fifteen thousand, three hundred forty-two".