30313472 has 44 divisors (see below), whose sum is σ = 69270480. Its totient is φ = 12988416.

The previous prime is 30313457. The next prime is 30313477. The reversal of 30313472 is 27431303.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30313477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5054 + ... + 9282.

Almost surely, 2^30313472 is an apocalyptic number.

30313472 is a gapful number since it is divisible by the number (32) 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 30313472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34635240).

30313472 is an abundant number, since it is smaller than the sum of its proper divisors (38957008).

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

30313472 is an equidigital number, since it uses as much as digits as its factorization.

30313472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256 (or 4238 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 30313472 is about 5505.7671581715. The cubic root of 30313472 is about 311.8017587915.

Adding to 30313472 its reverse (27431303), we get a palindrome (57744775).

The spelling of 30313472 in words is "thirty million, three hundred thirteen thousand, four hundred seventy-two".