30711214 has 16 divisors (see below), whose sum is σ = 49968576. Its totient is φ = 14099200.

The previous prime is 30711199. The next prime is 30711217. The reversal of 30711214 is 41211703.

It is a junction number, because it is equal to n+sod(n) for n = 30711191 and 30711200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30711217) 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, 9622 + ... + 12409.

It is an arithmetic number, because the mean of its divisors is an integer number (3123036).

Almost surely, 2^30711214 is an apocalyptic number.

30711214 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30711214 is a deficient number, since it is larger than the sum of its proper divisors (19257362).

30711214 is a wasteful number, since it uses less digits than its factorization.

30711214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22091.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 30711214 is about 5541.7699338749. The cubic root of 30711214 is about 313.1595507842.

Adding to 30711214 its reverse (41211703), we get a palindrome (71922917).

The spelling of 30711214 in words is "thirty million, seven hundred eleven thousand, two hundred fourteen".