30868378 has 16 divisors (see below), whose sum is σ = 47453184. Its totient is φ = 15053040.

The previous prime is 30868351. The next prime is 30868391. The reversal of 30868378 is 87386803.

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 7 ways as a sum of consecutive naturals, for example, 50551 + ... + 51157.

It is an arithmetic number, because the mean of its divisors is an integer number (2965824).

Almost surely, 2^30868378 is an apocalyptic number.

30868378 is a deficient number, since it is larger than the sum of its proper divisors (16584806).

30868378 is a wasteful number, since it uses less digits than its factorization.

30868378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 30868378 is about 5555.9317850384. The cubic root of 30868378 is about 313.6928379538.

It can be divided in two parts, 308 and 68378, that added together give a palindrome (68686).

The spelling of 30868378 in words is "thirty million, eight hundred sixty-eight thousand, three hundred seventy-eight".