30886272 has 112 divisors (see below), whose sum is σ = 92533380. Its totient is φ = 10264320.

The previous prime is 30886249. The next prime is 30886279. The reversal of 30886272 is 27268803.

It is a happy number.

30886272 is a `hidden beast` number, since 308 + 86 + 272 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30886279) 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 13 ways as a sum of consecutive naturals, for example, 93147 + ... + 93477.

Almost surely, 2^30886272 is an apocalyptic number.

30886272 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 30886272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46266690).

30886272 is an abundant number, since it is smaller than the sum of its proper divisors (61647108).

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

30886272 is an frugal number, since it uses more digits than its factorization.

30886272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 30886272 is about 5557.5419026760. The cubic root of 30886272 is about 313.7534408071.

The spelling of 30886272 in words is "thirty million, eight hundred eighty-six thousand, two hundred seventy-two".