15241340 has 24 divisors (see below), whose sum is σ = 32789232. Its totient is φ = 5947520.

The previous prime is 15241337. The next prime is 15241349. The reversal of 15241340 is 4314251.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15241349) 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 7 ways as a sum of consecutive naturals, for example, 8474 + ... + 10113.

It is an arithmetic number, because the mean of its divisors is an integer number (1366218).

Almost surely, 2^15241340 is an apocalyptic number.

15241340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15241340 is an abundant number, since it is smaller than the sum of its proper divisors (17547892).

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

15241340 is a wasteful number, since it uses less digits than its factorization.

15241340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18637 (or 18635 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 15241340 is about 3904.0158811152. The cubic root of 15241340 is about 247.9368335484.

Adding to 15241340 its reverse (4314251), we get a palindrome (19555591).

The spelling of 15241340 in words is "fifteen million, two hundred forty-one thousand, three hundred forty".