30053268 has 108 divisors (see below), whose sum is σ = 91789152. Its totient is φ = 8573040.

The previous prime is 30053267. The next prime is 30053281. The reversal of 30053268 is 86235003.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30053267) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 47313 + ... + 47943.

Almost surely, 2^30053268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30053268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45894576).

30053268 is an abundant number, since it is smaller than the sum of its proper divisors (61735884).

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

30053268 is a wasteful number, since it uses less digits than its factorization.

30053268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30053268 is about 5482.0860992874. The cubic root of 30053268 is about 310.9070485890.

The spelling of 30053268 in words is "thirty million, fifty-three thousand, two hundred sixty-eight".