30898868 has 48 divisors (see below), whose sum is σ = 72610944. Its totient is φ = 11111040.

The previous prime is 30898837. The next prime is 30898873. The reversal of 30898868 is 86889803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146 + ... + 7862.

It is an arithmetic number, because the mean of its divisors is an integer number (1512728).

Almost surely, 2^30898868 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 30898868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36305472).

30898868 is an abundant number, since it is smaller than the sum of its proper divisors (41712076).

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

30898868 is a wasteful number, since it uses less digits than its factorization.

30898868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752 (or 7750 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 30898868 is about 5558.6750219814. The cubic root of 30898868 is about 313.7960865196.

It can be divided in two parts, 30 and 898868, that added together give a palindrome (898898).

The spelling of 30898868 in words is "thirty million, eight hundred ninety-eight thousand, eight hundred sixty-eight".