30646042 has 32 divisors (see below), whose sum is σ = 54641664. Its totient is φ = 12614400.

The previous prime is 30645991. The next prime is 30646043. The reversal of 30646042 is 24064603.

It is a junction number, because it is equal to n+sod(n) for n = 30645998 and 30646016.

It is not an unprimeable number, because it can be changed into a prime (30646043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104448 + ... + 104740.

It is an arithmetic number, because the mean of its divisors is an integer number (1707552).

Almost surely, 2^30646042 is an apocalyptic number.

30646042 is a deficient number, since it is larger than the sum of its proper divisors (23995622).

30646042 is a wasteful number, since it uses less digits than its factorization.

30646042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 30646042 is about 5535.8867401709. The cubic root of 30646042 is about 312.9378761863.

The spelling of 30646042 in words is "thirty million, six hundred forty-six thousand, forty-two".