30206742 has 16 divisors (see below), whose sum is σ = 60979392. Its totient is φ = 9974600.

The previous prime is 30206731. The next prime is 30206747. The reversal of 30206742 is 24760203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30206747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22884 + ... + 24167.

It is an arithmetic number, because the mean of its divisors is an integer number (3811212).

Almost surely, 2^30206742 is an apocalyptic number.

30206742 is an abundant number, since it is smaller than the sum of its proper divisors (30772650).

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

30206742 is a wasteful number, since it uses less digits than its factorization.

30206742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47163.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 30206742 is about 5496.0660476381. The cubic root of 30206742 is about 311.4353899493.

Adding to 30206742 its reverse (24760203), we get a palindrome (54966945).

The spelling of 30206742 in words is "thirty million, two hundred six thousand, seven hundred forty-two".