10245421242 has 80 divisors (see below), whose sum is σ = 26795324160. Its totient is φ = 2864966112.

The previous prime is 10245421189. The next prime is 10245421247. The reversal of 10245421242 is 24212454201.

It is a happy number.

10245421242 is a `hidden beast` number, since 102 + 4 + 542 + 12 + 4 + 2 = 666.

10245421242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10245421247) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 42817 + ... + 149412.

It is an arithmetic number, because the mean of its divisors is an integer number (334941552).

Almost surely, 2^10245421242 is an apocalyptic number.

10245421242 is an abundant number, since it is smaller than the sum of its proper divisors (16549902918).

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

10245421242 is a wasteful number, since it uses less digits than its factorization.

10245421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192297 (or 192288 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 10245421242 its reverse (24212454201), we get a palindrome (34457875443).

The spelling of 10245421242 in words is "ten billion, two hundred forty-five million, four hundred twenty-one thousand, two hundred forty-two".