30423986 has 16 divisors (see below), whose sum is σ = 47763648. Its totient is φ = 14506800.

The previous prime is 30423979. The next prime is 30424003. The reversal of 30423986 is 68932403.

It is a happy number.

It is a Curzon number.

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, 18581 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (2985228).

Almost surely, 2^30423986 is an apocalyptic number.

30423986 is a deficient number, since it is larger than the sum of its proper divisors (17339662).

30423986 is a wasteful number, since it uses less digits than its factorization.

30423986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 30423986 is about 5515.7942311149. The cubic root of 30423986 is about 312.1802117451.

The spelling of 30423986 in words is "thirty million, four hundred twenty-three thousand, nine hundred eighty-six".