30163072 has 32 divisors (see below), whose sum is σ = 60955200. Its totient is φ = 14864640.

The previous prime is 30163043. The next prime is 30163073. The reversal of 30163072 is 27036103.

It is a tau number, because it is divible by the number of its divisors (32).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30163073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7429 + ... + 10747.

It is an arithmetic number, because the mean of its divisors is an integer number (1904850).

Almost surely, 2^30163072 is an apocalyptic number.

30163072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30163072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30477600).

30163072 is an abundant number, since it is smaller than the sum of its proper divisors (30792128).

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

30163072 is an equidigital number, since it uses as much as digits as its factorization.

30163072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3392 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 30163072 is about 5492.0917690803. The cubic root of 30163072 is about 311.2852364639.

Adding to 30163072 its reverse (27036103), we get a palindrome (57199175).

The spelling of 30163072 in words is "thirty million, one hundred sixty-three thousand, seventy-two".