30706080 has 192 divisors, whose sum is σ = 105815808. Its totient is φ = 7454720.

The previous prime is 30706079. The next prime is 30706129. The reversal of 30706080 is 8060703.

30706080 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30706080.

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, 432445 + ... + 432515.

It is an arithmetic number, because the mean of its divisors is an integer number (551124).

Almost surely, 2^30706080 is an apocalyptic number.

30706080 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 30706080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52907904).

30706080 is an abundant number, since it is smaller than the sum of its proper divisors (75109728).

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

30706080 is a wasteful number, since it uses less digits than its factorization.

30706080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30706080 is about 5541.3067051012. The cubic root of 30706080 is about 313.1420994961.

Adding to 30706080 its reverse (8060703), we get a palindrome (38766783).

The spelling of 30706080 in words is "thirty million, seven hundred six thousand, eighty".