30021042 has 8 divisors (see below), whose sum is σ = 60042096. Its totient is φ = 10007012.

The previous prime is 30021041. The next prime is 30021053. The reversal of 30021042 is 24012003.

It is a sphenic number, since it is the product of 3 distinct primes.

30021042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30021041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501748 + ... + 2501759.

It is an arithmetic number, because the mean of its divisors is an integer number (7505262).

Almost surely, 2^30021042 is an apocalyptic number.

30021042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30021042 is a wasteful number, since it uses less digits than its factorization.

30021042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003512.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30021042 is about 5479.1461013556. The cubic root of 30021042 is about 310.7958807131.

Adding to 30021042 its reverse (24012003), we get a palindrome (54033045).

The spelling of 30021042 in words is "thirty million, twenty-one thousand, forty-two".