30068142 has 32 divisors (see below), whose sum is σ = 65173920. Its totient is φ = 9247680.

The previous prime is 30068131. The next prime is 30068147. The reversal of 30068142 is 24186003.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30068147) 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, 12042 + ... + 14322.

It is an arithmetic number, because the mean of its divisors is an integer number (2036685).

Almost surely, 2^30068142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30068142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32586960).

30068142 is an abundant number, since it is smaller than the sum of its proper divisors (35105778).

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

30068142 is a wasteful number, since it uses less digits than its factorization.

30068142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325 (or 2299 counting only the distinct ones).

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

The square root of 30068142 is about 5483.4425318407. The cubic root of 30068142 is about 310.9583316279.

The spelling of 30068142 in words is "thirty million, sixty-eight thousand, one hundred forty-two".