30980880 has 200 divisors, whose sum is σ = 123152832. Its totient is φ = 7070976.

The previous prime is 30980869. The next prime is 30980881. The reversal of 30980880 is 8808903.

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

It is not an unprimeable number, because it can be changed into a prime (30980881) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45019 + ... + 45701.

Almost surely, 2^30980880 is an apocalyptic number.

30980880 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 30980880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61576416).

30980880 is an abundant number, since it is smaller than the sum of its proper divisors (92171952).

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

30980880 is a wasteful number, since it uses less digits than its factorization.

30980880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 30980880 is about 5566.0470713065. The cubic root of 30980880 is about 314.0734678727.

The spelling of 30980880 in words is "thirty million, nine hundred eighty thousand, eight hundred eighty".