102066042 has 32 divisors (see below), whose sum is σ = 229396608. Its totient is φ = 30038976.

The previous prime is 102066031. The next prime is 102066049. The reversal of 102066042 is 240660201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102066049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26653 + ... + 30240.

It is an arithmetic number, because the mean of its divisors is an integer number (7168644).

Almost surely, 2^102066042 is an apocalyptic number.

102066042 is an abundant number, since it is smaller than the sum of its proper divisors (127330566).

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

102066042 is a wasteful number, since it uses less digits than its factorization.

102066042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56934.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 102066042 is about 10102.7739754980. The cubic root of 102066042 is about 467.3336909274. Note that the first 3 decimals are identical.

The spelling of 102066042 in words is "one hundred two million, sixty-six thousand, forty-two".