30886042 has 32 divisors (see below), whose sum is σ = 53887680. Its totient is φ = 13121280.

The previous prime is 30886007. The next prime is 30886049. The reversal of 30886042 is 24068803.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30885995 and 30886013.

It is not an unprimeable number, because it can be changed into a prime (30886049) 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 15 ways as a sum of consecutive naturals, for example, 100453 + ... + 100759.

It is an arithmetic number, because the mean of its divisors is an integer number (1683990).

Almost surely, 2^30886042 is an apocalyptic number.

30886042 is a deficient number, since it is larger than the sum of its proper divisors (23001638).

30886042 is a wasteful number, since it uses less digits than its factorization.

30886042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 30886042 is about 5557.5212100360. The cubic root of 30886042 is about 313.7526619987.

The spelling of 30886042 in words is "thirty million, eight hundred eighty-six thousand, forty-two".