30663842 has 16 divisors (see below), whose sum is σ = 50285664. Its totient is φ = 13908000.

The previous prime is 30663833. The next prime is 30663847. The reversal of 30663842 is 24836603.

It is a junction number, because it is equal to n+sod(n) for n = 30663799 and 30663808.

It is not an unprimeable number, because it can be changed into a prime (30663847) 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, 11342 + ... + 13782.

It is an arithmetic number, because the mean of its divisors is an integer number (3142854).

Almost surely, 2^30663842 is an apocalyptic number.

30663842 is a deficient number, since it is larger than the sum of its proper divisors (19621822).

30663842 is a wasteful number, since it uses less digits than its factorization.

30663842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 30663842 is about 5537.4941986426. The cubic root of 30663842 is about 312.9984518836.

The spelling of 30663842 in words is "thirty million, six hundred sixty-three thousand, eight hundred forty-two".