30818272 has 24 divisors (see below), whose sum is σ = 62087256. Its totient is φ = 15050112.

The previous prime is 30818269. The next prime is 30818279. The reversal of 30818272 is 27281803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30818279) 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, 9823 + ... + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (2586969).

Almost surely, 2^30818272 is an apocalyptic number.

30818272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30818272 is an abundant number, since it is smaller than the sum of its proper divisors (31268984).

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

30818272 is a wasteful number, since it uses less digits than its factorization.

30818272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22450 (or 22442 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 30818272 is about 5551.4207190592. The cubic root of 30818272 is about 313.5230157761.

The spelling of 30818272 in words is "thirty million, eight hundred eighteen thousand, two hundred seventy-two".