30869818 has 16 divisors (see below), whose sum is σ = 55221120. Its totient is φ = 12654576.

The previous prime is 30869809. The next prime is 30869819. The reversal of 30869818 is 81896803.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30869819) by changing a digit.

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, 47613 + ... + 48256.

It is an arithmetic number, because the mean of its divisors is an integer number (3451320).

Almost surely, 2^30869818 is an apocalyptic number.

30869818 is a deficient number, since it is larger than the sum of its proper divisors (24351302).

30869818 is a wasteful number, since it uses less digits than its factorization.

30869818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95901.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 30869818 is about 5556.0613747510. The cubic root of 30869818 is about 313.6977157682.

The spelling of 30869818 in words is "thirty million, eight hundred sixty-nine thousand, eight hundred eighteen".