15532240240 has 40 divisors (see below), whose sum is σ = 39395411568. Its totient is φ = 5648087040.

The previous prime is 15532240201. The next prime is 15532240271. The reversal of 15532240240 is 4204223551.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 15532240199 and 15532240208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8824257 + ... + 8826016.

Almost surely, 2^15532240240 is an apocalyptic number.

15532240240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15532240240 is an abundant number, since it is smaller than the sum of its proper divisors (23863171328).

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

15532240240 is a wasteful number, since it uses less digits than its factorization.

15532240240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17650297 (or 17650291 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 15532240240 its reverse (4204223551), we get a palindrome (19736463791).

The spelling of 15532240240 in words is "fifteen billion, five hundred thirty-two million, two hundred forty thousand, two hundred forty".