102442656 has 48 divisors (see below), whose sum is σ = 271452384. Its totient is φ = 33825024.

The previous prime is 102442651. The next prime is 102442673. The reversal of 102442656 is 656244201.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (102442651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5286 + ... + 15258.

It is an arithmetic number, because the mean of its divisors is an integer number (5655258).

Almost surely, 2^102442656 is an apocalyptic number.

102442656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102442656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135726192).

102442656 is an abundant number, since it is smaller than the sum of its proper divisors (169009728).

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

102442656 is a wasteful number, since it uses less digits than its factorization.

102442656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 102442656 is about 10121.3959511522. The cubic root of 102442656 is about 467.9077910233.

Adding to 102442656 its reverse (656244201), we get a palindrome (758686857).

The spelling of 102442656 in words is "one hundred two million, four hundred forty-two thousand, six hundred fifty-six".