30080256 has 72 divisors (see below), whose sum is σ = 81678240. Its totient is φ = 9824256.

The previous prime is 30080233. The next prime is 30080291. The reversal of 30080256 is 65208003.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40335 + ... + 41073.

It is an arithmetic number, because the mean of its divisors is an integer number (1134420).

Almost surely, 2^30080256 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 30080256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40839120).

30080256 is an abundant number, since it is smaller than the sum of its proper divisors (51597984).

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

30080256 is an equidigital number, since it uses as much as digits as its factorization.

30080256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30080256 is about 5484.5470186698. The cubic root of 30080256 is about 311.0000861584. Note that the first 4 decimals are identical.

Adding to 30080256 its reverse (65208003), we get a palindrome (95288259).

The spelling of 30080256 in words is "thirty million, eighty thousand, two hundred fifty-six".