102442666 has 8 divisors (see below), whose sum is σ = 154021824. Its totient is φ = 51102060.

The previous prime is 102442651. The next prime is 102442673. The reversal of 102442666 is 666244201.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 58560 + ... + 60283.

It is an arithmetic number, because the mean of its divisors is an integer number (19252728).

Almost surely, 2^102442666 is an apocalyptic number.

102442666 is a deficient number, since it is larger than the sum of its proper divisors (51579158).

102442666 is a wasteful number, since it uses less digits than its factorization.

102442666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119276.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 102442666 is about 10121.3964451552. The cubic root of 102442666 is about 467.9078062484.

Adding to 102442666 its reverse (666244201), we get a palindrome (768686867).

The spelling of 102442666 in words is "one hundred two million, four hundred forty-two thousand, six hundred sixty-six".