15380340 has 48 divisors (see below), whose sum is σ = 44459520. Its totient is φ = 3968640.

The previous prime is 15380333. The next prime is 15380347. The reversal of 15380340 is 4308351.

It is an interprime number because it is at equal distance from previous prime (15380333) and next prime (15380347).

It is a self number, because there is not a number n which added to its sum of digits gives 15380340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15380347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275 + ... + 5994.

It is an arithmetic number, because the mean of its divisors is an integer number (926240).

Almost surely, 2^15380340 is an apocalyptic number.

15380340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15380340 is an abundant number, since it is smaller than the sum of its proper divisors (29079180).

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

15380340 is a wasteful number, since it uses less digits than its factorization.

15380340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312 (or 8310 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 15380340 is about 3921.7776581545. Note that the first 3 decimals coincide. The cubic root of 15380340 is about 248.6882762269.

Adding to 15380340 its reverse (4308351), we get a palindrome (19688691).

The spelling of 15380340 in words is "fifteen million, three hundred eighty thousand, three hundred forty".