30998268 has 96 divisors (see below), whose sum is σ = 92843520. Its totient is φ = 8760960.

The previous prime is 30998263. The next prime is 30998281. The reversal of 30998268 is 86289903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30998263) 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, 98880 + ... + 99192.

It is an arithmetic number, because the mean of its divisors is an integer number (967120).

Almost surely, 2^30998268 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 30998268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46421760).

30998268 is an abundant number, since it is smaller than the sum of its proper divisors (61845252).

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

30998268 is a wasteful number, since it uses less digits than its factorization.

30998268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 30998268 is about 5567.6088224659. The cubic root of 30998268 is about 314.1322147309.

The spelling of 30998268 in words is "thirty million, nine hundred ninety-eight thousand, two hundred sixty-eight".