42440102 has 8 divisors (see below), whose sum is σ = 63792336. Its totient is φ = 21175992.

The previous prime is 42440093. The next prime is 42440113. The reversal of 42440102 is 20104424.

42440102 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.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20813 + ... + 22760.

It is an arithmetic number, because the mean of its divisors is an integer number (7974042).

Almost surely, 2^42440102 is an apocalyptic number.

42440102 is a deficient number, since it is larger than the sum of its proper divisors (21352234).

42440102 is a wasteful number, since it uses less digits than its factorization.

42440102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44062.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42440102 is about 6514.6068185271. The cubic root of 42440102 is about 348.8125801634.

Adding to 42440102 its reverse (20104424), we get a palindrome (62544526).

The spelling of 42440102 in words is "forty-two million, four hundred forty thousand, one hundred two".