30868560 has 160 divisors (see below), whose sum is σ = 109992960. Its totient is φ = 7948800.

The previous prime is 30868547. The next prime is 30868571. The reversal of 30868560 is 6586803.

30868560 is a `hidden beast` number, since 30 + 8 + 68 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66730 + ... + 67190.

It is an arithmetic number, because the mean of its divisors is an integer number (687456).

Almost surely, 2^30868560 is an apocalyptic number.

30868560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30868560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54996480).

30868560 is an abundant number, since it is smaller than the sum of its proper divisors (79124400).

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

30868560 is a wasteful number, since it uses less digits than its factorization.

30868560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 30868560 is about 5555.9481639051. The cubic root of 30868560 is about 313.6934544637.

The spelling of 30868560 in words is "thirty million, eight hundred sixty-eight thousand, five hundred sixty".