30001916 has 18 divisors (see below), whose sum is σ = 61075728. Its totient is φ = 12857880.

The previous prime is 30001901. The next prime is 30001919. The reversal of 30001916 is 61910003.

It is a super-2 number, since 2×30001916² = 1800229927342112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76340 + ... + 76731.

It is an arithmetic number, because the mean of its divisors is an integer number (3393096).

Almost surely, 2^30001916 is an apocalyptic number.

It is an amenable number.

30001916 is an abundant number, since it is smaller than the sum of its proper divisors (31073812).

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

30001916 is a wasteful number, since it uses less digits than its factorization.

30001916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153089 (or 153080 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 30001916 is about 5477.4004783291. The cubic root of 30001916 is about 310.7298654073.

Adding to 30001916 its reverse (61910003), we get a palindrome (91911919).

The spelling of 30001916 in words is "thirty million, one thousand, nine hundred sixteen".