30689042 has 8 divisors (see below), whose sum is σ = 46396416. Its totient is φ = 15223572.

The previous prime is 30689023. The next prime is 30689053. The reversal of 30689042 is 24098603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60158 + ... + 60665.

It is an arithmetic number, because the mean of its divisors is an integer number (5799552).

Almost surely, 2^30689042 is an apocalyptic number.

30689042 is a deficient number, since it is larger than the sum of its proper divisors (15707374).

30689042 is a wasteful number, since it uses less digits than its factorization.

30689042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120952.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30689042 is about 5539.7691287634. The cubic root of 30689042 is about 313.0841706624.

The spelling of 30689042 in words is "thirty million, six hundred eighty-nine thousand, forty-two".