30830880 has 48 divisors (see below), whose sum is σ = 97118784. Its totient is φ = 8221440.

The previous prime is 30830867. The next prime is 30830881. The reversal of 30830880 is 8803803.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (30830881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31636 + ... + 32595.

It is an arithmetic number, because the mean of its divisors is an integer number (2023308).

Almost surely, 2^30830880 is an apocalyptic number.

30830880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30830880 is an abundant number, since it is smaller than the sum of its proper divisors (66287904).

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

30830880 is a wasteful number, since it uses less digits than its factorization.

30830880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64249 (or 64241 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 30830880 is about 5552.5561681085. The cubic root of 30830880 is about 313.5657648661.

The spelling of 30830880 in words is "thirty million, eight hundred thirty thousand, eight hundred eighty".