15245021442 has 32 divisors (see below), whose sum is σ = 35503235712. Its totient is φ = 4273536384.

The previous prime is 15245021423. The next prime is 15245021447. The reversal of 15245021442 is 24412054251.

It is not an unprimeable number, because it can be changed into a prime (15245021447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3422083 + ... + 3426534.

It is an arithmetic number, because the mean of its divisors is an integer number (1109476116).

Almost surely, 2^15245021442 is an apocalyptic number.

15245021442 is an abundant number, since it is smaller than the sum of its proper divisors (20258214270).

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

15245021442 is a wasteful number, since it uses less digits than its factorization.

15245021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848682.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 15245021442 its reverse (24412054251), we get a palindrome (39657075693).

The spelling of 15245021442 in words is "fifteen billion, two hundred forty-five million, twenty-one thousand, four hundred forty-two".