30742271 has 8 divisors (see below), whose sum is σ = 35615904. Its totient is φ = 25989120.

The previous prime is 30742259. The next prime is 30742303. The reversal of 30742271 is 17224703.

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

It is a cyclic number.

It is not a de Polignac number, because 30742271 - 2⁶ = 30742207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30742271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30742471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29570 + ... + 30591.

It is an arithmetic number, because the mean of its divisors is an integer number (4451988).

Almost surely, 2^30742271 is an apocalyptic number.

30742271 is a deficient number, since it is larger than the sum of its proper divisors (4873633).

30742271 is an equidigital number, since it uses as much as digits as its factorization.

30742271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60241.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 30742271 is about 5544.5713089472. The cubic root of 30742271 is about 313.2650770541.

Adding to 30742271 its reverse (17224703), we get a palindrome (47966974).

It can be divided in two parts, 30742 and 271, that added together give a palindrome (31013).

The spelling of 30742271 in words is "thirty million, seven hundred forty-two thousand, two hundred seventy-one".