30508296 has 128 divisors (see below), whose sum is σ = 95827200. Its totient is φ = 7879680.

The previous prime is 30508277. The next prime is 30508301. The reversal of 30508296 is 69280503.

It is a happy number.

It is a super-2 number, since 2×30508296² = 1861512249647232, which contains 22 as substring.

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, 133110 + ... + 133338.

It is an arithmetic number, because the mean of its divisors is an integer number (748650).

Almost surely, 2^30508296 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 30508296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47913600).

30508296 is an abundant number, since it is smaller than the sum of its proper divisors (65318904).

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

30508296 is a wasteful number, since it uses less digits than its factorization.

30508296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 30508296 is about 5523.4315420760. The cubic root of 30508296 is about 312.4683138006.

Adding to 30508296 its reverse (69280503), we get a palindrome (99788799).

The spelling of 30508296 in words is "thirty million, five hundred eight thousand, two hundred ninety-six".