30694018 has 8 divisors (see below), whose sum is σ = 46671948. Its totient is φ = 15136704.

The previous prime is 30694009. The next prime is 30694019. The reversal of 30694018 is 81049603.

It can be written as a sum of positive squares in 2 ways, for example, as 28697449 + 1996569 = 5357^2 + 1413^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30694019) by changing a digit.

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, 104971 + ... + 105262.

Almost surely, 2^30694018 is an apocalyptic number.

30694018 is a deficient number, since it is larger than the sum of its proper divisors (15977930).

30694018 is a wasteful number, since it uses less digits than its factorization.

30694018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210308.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30694018 is about 5540.2182267488. The cubic root of 30694018 is about 313.1010911714.

The spelling of 30694018 in words is "thirty million, six hundred ninety-four thousand, eighteen".