30163992 has 32 divisors (see below), whose sum is σ = 77844480. Its totient is φ = 9730080.

The previous prime is 30163981. The next prime is 30163999. The reversal of 30163992 is 29936103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30163999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19528 + ... + 21015.

It is an arithmetic number, because the mean of its divisors is an integer number (2432640).

Almost surely, 2^30163992 is an apocalyptic number.

It is an amenable number.

30163992 is an abundant number, since it is smaller than the sum of its proper divisors (47680488).

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

30163992 is a wasteful number, since it uses less digits than its factorization.

30163992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40583 (or 40579 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 30163992 is about 5492.1755252359. The cubic root of 30163992 is about 311.2884012554.

The spelling of 30163992 in words is "thirty million, one hundred sixty-three thousand, nine hundred ninety-two".