102238378 has 16 divisors (see below), whose sum is σ = 170457696. Its totient is φ = 45594640.

The previous prime is 102238351. The next prime is 102238397. The reversal of 102238378 is 873832201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42676 + ... + 45007.

It is an arithmetic number, because the mean of its divisors is an integer number (10653606).

Almost surely, 2^102238378 is an apocalyptic number.

102238378 is a deficient number, since it is larger than the sum of its proper divisors (68219318).

102238378 is a wasteful number, since it uses less digits than its factorization.

102238378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87749.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 102238378 is about 10111.2995208331. The cubic root of 102238378 is about 467.5965701731.

The spelling of 102238378 in words is "one hundred two million, two hundred thirty-eight thousand, three hundred seventy-eight".