30906994 has 8 divisors (see below), whose sum is σ = 46461168. Its totient is φ = 15419940.

The previous prime is 30906991. The next prime is 30907001. The reversal of 30906994 is 49960903.

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 (30906991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15612 + ... + 17479.

It is an arithmetic number, because the mean of its divisors is an integer number (5807646).

Almost surely, 2^30906994 is an apocalyptic number.

30906994 is a deficient number, since it is larger than the sum of its proper divisors (15554174).

30906994 is a wasteful number, since it uses less digits than its factorization.

30906994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33560.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 30906994 is about 5559.4059035116. The cubic root of 30906994 is about 313.8235922036.

The spelling of 30906994 in words is "thirty million, nine hundred six thousand, nine hundred ninety-four".