30694938 has 8 divisors (see below), whose sum is σ = 61389888. Its totient is φ = 10231644.

The previous prime is 30694919. The next prime is 30694969. The reversal of 30694938 is 83949603.

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

30694938 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 30694938.

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 3 ways as a sum of consecutive naturals, for example, 2557906 + ... + 2557917.

It is an arithmetic number, because the mean of its divisors is an integer number (7673736).

Almost surely, 2^30694938 is an apocalyptic number.

30694938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30694938 is a wasteful number, since it uses less digits than its factorization.

30694938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115828.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 30694938 is about 5540.3012553470. The cubic root of 30694938 is about 313.1042193611.

The spelling of 30694938 in words is "thirty million, six hundred ninety-four thousand, nine hundred thirty-eight".