15240002442 has 64 divisors (see below), whose sum is σ = 36691968000. Its totient is φ = 4213807920.

The previous prime is 15240002387. The next prime is 15240002443. The reversal of 15240002442 is 24420004251.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15240002443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55642 + ... + 183237.

It is an arithmetic number, because the mean of its divisors is an integer number (573312000).

Almost surely, 2^15240002442 is an apocalyptic number.

15240002442 is an abundant number, since it is smaller than the sum of its proper divisors (21451965558).

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

15240002442 is a wasteful number, since it uses less digits than its factorization.

15240002442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238936 (or 238922 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 15240002442 its reverse (24420004251), we get a palindrome (39660006693).

The spelling of 15240002442 in words is "fifteen billion, two hundred forty million, two thousand, four hundred forty-two".