30854138 has 32 divisors (see below), whose sum is σ = 56058240. Its totient is φ = 12441600.

The previous prime is 30854123. The next prime is 30854147. The reversal of 30854138 is 83145803.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51038 + ... + 51638.

It is an arithmetic number, because the mean of its divisors is an integer number (1751820).

Almost surely, 2^30854138 is an apocalyptic number.

30854138 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30854138 is a deficient number, since it is larger than the sum of its proper divisors (25204102).

30854138 is a wasteful number, since it uses less digits than its factorization.

30854138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 30854138 is about 5554.6501239952. The cubic root of 30854138 is about 313.6445936190.

The spelling of 30854138 in words is "thirty million, eight hundred fifty-four thousand, one hundred thirty-eight".