30258984 has 128 divisors (see below), whose sum is σ = 92897280. Its totient is φ = 8025600.

The previous prime is 30258983. The next prime is 30259013. The reversal of 30258984 is 48985203.

It is a happy number.

It is a super-2 number, since 2×30258984² = 1831212225424512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30258983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158329 + ... + 158519.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 2^30258984 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 30258984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46448640).

30258984 is an abundant number, since it is smaller than the sum of its proper divisors (62638296).

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

30258984 is a wasteful number, since it uses less digits than its factorization.

30258984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 30258984 is about 5500.8166666414. The cubic root of 30258984 is about 311.6148271214.

The spelling of 30258984 in words is "thirty million, two hundred fifty-eight thousand, nine hundred eighty-four".