15232344540 has 192 divisors, whose sum is σ = 50514831360. Its totient is φ = 3355591680.

The previous prime is 15232344521. The next prime is 15232344551. The reversal of 15232344540 is 4544323251.

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 63 ways as a sum of consecutive naturals, for example, 12556974 + ... + 12558186.

It is an arithmetic number, because the mean of its divisors is an integer number (263098080).

Almost surely, 2^15232344540 is an apocalyptic number.

15232344540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15232344540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25257415680).

15232344540 is an abundant number, since it is smaller than the sum of its proper divisors (35282486820).

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

15232344540 is a wasteful number, since it uses less digits than its factorization.

15232344540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 15232344540 its reverse (4544323251), we get a palindrome (19776667791).

The spelling of 15232344540 in words is "fifteen billion, two hundred thirty-two million, three hundred forty-four thousand, five hundred forty".