15230240 has 24 divisors (see below), whose sum is σ = 35981820. Its totient is φ = 6092032.

The previous prime is 15230219. The next prime is 15230263. The reversal of 15230240 is 4203251.

It can be written as a sum of positive squares in 2 ways, for example, as 14531344 + 698896 = 3812^2 + 836^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47435 + ... + 47754.

Almost surely, 2^15230240 is an apocalyptic number.

15230240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15230240 is an abundant number, since it is smaller than the sum of its proper divisors (20751580).

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

15230240 is an equidigital number, since it uses as much as digits as its factorization.

15230240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95204 (or 95196 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 15230240 is about 3902.5940091175. The cubic root of 15230240 is about 247.8766295851.

Adding to 15230240 its reverse (4203251), we get a palindrome (19433491).

The spelling of 15230240 in words is "fifteen million, two hundred thirty thousand, two hundred forty".