15380530 has 32 divisors (see below), whose sum is σ = 31026240. Its totient is φ = 5440320.

The previous prime is 15380513. The next prime is 15380531. The reversal of 15380530 is 3508351.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15380495 and 15380504.

It is not an unprimeable number, because it can be changed into a prime (15380531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181 + ... + 5959.

It is an arithmetic number, because the mean of its divisors is an integer number (969570).

Almost surely, 2^15380530 is an apocalyptic number.

15380530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15380530 is an abundant number, since it is smaller than the sum of its proper divisors (15645710).

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

15380530 is a wasteful number, since it uses less digits than its factorization.

15380530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 15380530 is about 3921.8018817885. The cubic root of 15380530 is about 248.6893002740.

Adding to 15380530 its reverse (3508351), we get a palindrome (18888881).

The spelling of 15380530 in words is "fifteen million, three hundred eighty thousand, five hundred thirty".