30489368 has 96 divisors (see below), whose sum is σ = 74309760. Its totient is φ = 11612160.

The previous prime is 30489359. The next prime is 30489383. The reversal of 30489368 is 86398403.

It is a super-2 number, since 2×30489368² = 1859203122078848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157880 + ... + 158072.

It is an arithmetic number, because the mean of its divisors is an integer number (774060).

Almost surely, 2^30489368 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 30489368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37154880).

30489368 is an abundant number, since it is smaller than the sum of its proper divisors (43820392).

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

30489368 is a wasteful number, since it uses less digits than its factorization.

30489368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 30489368 is about 5521.7178486409. The cubic root of 30489368 is about 312.4036797548.

The spelling of 30489368 in words is "thirty million, four hundred eighty-nine thousand, three hundred sixty-eight".