30320016 has 20 divisors (see below), whose sum is σ = 78326832. Its totient is φ = 10106656.

The previous prime is 30320009. The next prime is 30320021. The reversal of 30320016 is 61002303.

It is a junction number, because it is equal to n+sod(n) for n = 30319977 and 30320004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315786 + ... + 315881.

Almost surely, 2^30320016 is an apocalyptic number.

It is an amenable number.

30320016 is an abundant number, since it is smaller than the sum of its proper divisors (48006816).

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

30320016 is a wasteful number, since it uses less digits than its factorization.

30320016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631678 (or 631672 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 30320016 is about 5506.3614120397. The cubic root of 30320016 is about 311.8241941837.

Adding to 30320016 its reverse (61002303), we get a palindrome (91322319).

The spelling of 30320016 in words is "thirty million, three hundred twenty thousand, sixteen".