30021468 has 12 divisors (see below), whose sum is σ = 70050120. Its totient is φ = 10007152.

The previous prime is 30021461. The next prime is 30021491. The reversal of 30021468 is 86412003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250883 + ... + 1250906.

It is an arithmetic number, because the mean of its divisors is an integer number (5837510).

Almost surely, 2^30021468 is an apocalyptic number.

It is an amenable number.

30021468 is an abundant number, since it is smaller than the sum of its proper divisors (40028652).

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

30021468 is a wasteful number, since it uses less digits than its factorization.

30021468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501796 (or 2501794 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 30021468 is about 5479.1849758883. The cubic root of 30021468 is about 310.7973507755.

The spelling of 30021468 in words is "thirty million, twenty-one thousand, four hundred sixty-eight".