30380016 has 80 divisors (see below), whose sum is σ = 82494720. Its totient is φ = 9623040.

The previous prime is 30379967. The next prime is 30380017. The reversal of 30380016 is 61008303.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 30379974 and 30380001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30380017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84445 + ... + 84803.

It is an arithmetic number, because the mean of its divisors is an integer number (1031184).

Almost surely, 2^30380016 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 30380016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41247360).

30380016 is an abundant number, since it is smaller than the sum of its proper divisors (52114704).

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

30380016 is a wasteful number, since it uses less digits than its factorization.

30380016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30380016 is about 5511.8069632381. The cubic root of 30380016 is about 312.0297473280.

Adding to 30380016 its reverse (61008303), we get a palindrome (91388319).

The spelling of 30380016 in words is "thirty million, three hundred eighty thousand, sixteen".