102289242 has 16 divisors (see below), whose sum is σ = 223176672. Its totient is φ = 30996720.

The previous prime is 102289241. The next prime is 102289247. The reversal of 102289242 is 242982201.

It is not an unprimeable number, because it can be changed into a prime (102289241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774853 + ... + 774984.

It is an arithmetic number, because the mean of its divisors is an integer number (13948542).

Almost surely, 2^102289242 is an apocalyptic number.

102289242 is an abundant number, since it is smaller than the sum of its proper divisors (120887430).

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

102289242 is a wasteful number, since it uses less digits than its factorization.

102289242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549853.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 102289242 is about 10113.8144139588. The cubic root of 102289242 is about 467.6741010355.

The spelling of 102289242 in words is "one hundred two million, two hundred eighty-nine thousand, two hundred forty-two".