15244400442 has 8 divisors (see below), whose sum is σ = 30488800896. Its totient is φ = 5081466812.

The previous prime is 15244400407. The next prime is 15244400461. The reversal of 15244400442 is 24400444251.

15244400442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

15244400442 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270366698 + ... + 1270366709.

It is an arithmetic number, because the mean of its divisors is an integer number (3811100112).

Almost surely, 2^15244400442 is an apocalyptic number.

15244400442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15244400442 is a wasteful number, since it uses less digits than its factorization.

15244400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540733412.

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 15244400442 its reverse (24400444251), we get a palindrome (39644844693).

The spelling of 15244400442 in words is "fifteen billion, two hundred forty-four million, four hundred thousand, four hundred forty-two".