30352320 has 140 divisors (see below), whose sum is σ = 108060744. Its totient is φ = 8087040.

The previous prime is 30352277. The next prime is 30352337. The reversal of 30352320 is 2325303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30352293 and 30352302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25335 + ... + 26505.

Almost surely, 2^30352320 is an apocalyptic number.

30352320 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 30352320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54030372).

30352320 is an abundant number, since it is smaller than the sum of its proper divisors (77708424).

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

30352320 is a wasteful number, since it uses less digits than its factorization.

30352320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 30352320 is about 5509.2939656548. The cubic root of 30352320 is about 311.9348976592.

Adding to 30352320 its reverse (2325303), we get a palindrome (32677623).

The spelling of 30352320 in words is "thirty million, three hundred fifty-two thousand, three hundred twenty".