30257268 has 24 divisors (see below), whose sum is σ = 72509472. Its totient is φ = 9813024.

The previous prime is 30257261. The next prime is 30257273. The reversal of 30257268 is 86275203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30257261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33630 + ... + 34517.

It is an arithmetic number, because the mean of its divisors is an integer number (3021228).

Almost surely, 2^30257268 is an apocalyptic number.

It is an amenable number.

30257268 is an abundant number, since it is smaller than the sum of its proper divisors (42252204).

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

30257268 is a wasteful number, since it uses less digits than its factorization.

30257268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68191 (or 68189 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 30257268 is about 5500.6606875902. The cubic root of 30257268 is about 311.6089364064.

The spelling of 30257268 in words is "thirty million, two hundred fifty-seven thousand, two hundred sixty-eight".