30906168 has 16 divisors (see below), whose sum is σ = 77265480. Its totient is φ = 10302048.

The previous prime is 30906167. The next prime is 30906173. The reversal of 30906168 is 86160903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30906167) 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, 643855 + ... + 643902.

Almost surely, 2^30906168 is an apocalyptic number.

It is an amenable number.

30906168 is an abundant number, since it is smaller than the sum of its proper divisors (46359312).

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

30906168 is a wasteful number, since it uses less digits than its factorization.

30906168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287766 (or 1287762 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 30906168 is about 5559.3316145019. The cubic root of 30906168 is about 313.8207964977.

The spelling of 30906168 in words is "thirty million, nine hundred six thousand, one hundred sixty-eight".