30021038 has 16 divisors (see below), whose sum is σ = 45716400. Its totient is φ = 14784000.

The previous prime is 30021037. The next prime is 30021041. The reversal of 30021038 is 83012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021037) 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 7 ways as a sum of consecutive naturals, for example, 66638 + ... + 67086.

It is an arithmetic number, because the mean of its divisors is an integer number (2857275).

Almost surely, 2^30021038 is an apocalyptic number.

30021038 is a deficient number, since it is larger than the sum of its proper divisors (15695362).

30021038 is a wasteful number, since it uses less digits than its factorization.

30021038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30021038 is about 5479.1457363352. The cubic root of 30021038 is about 310.7958669096.

The spelling of 30021038 in words is "thirty million, twenty-one thousand, thirty-eight".