102443442 has 16 divisors (see below), whose sum is σ = 206193792. Its totient is φ = 33930000.

The previous prime is 102443431. The next prime is 102443443. The reversal of 102443442 is 244344201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102443443) 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 7 ways as a sum of consecutive naturals, for example, 53434 + ... + 55317.

It is an arithmetic number, because the mean of its divisors is an integer number (12887112).

Almost surely, 2^102443442 is an apocalyptic number.

102443442 is an abundant number, since it is smaller than the sum of its proper divisors (103750350).

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

102443442 is a wasteful number, since it uses less digits than its factorization.

102443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108913.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 102443442 is about 10121.4347797138. The cubic root of 102443442 is about 467.9089877077.

Adding to 102443442 its reverse (244344201), we get a palindrome (346787643).

The spelling of 102443442 in words is "one hundred two million, four hundred forty-three thousand, four hundred forty-two".