30712270 has 16 divisors (see below), whose sum is σ = 55773360. Its totient is φ = 12175744.

The previous prime is 30712259. The next prime is 30712307. The reversal of 30712270 is 7221703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12460 + ... + 14719.

It is an arithmetic number, because the mean of its divisors is an integer number (3485835).

Almost surely, 2^30712270 is an apocalyptic number.

30712270 is a deficient number, since it is larger than the sum of its proper divisors (25061090).

30712270 is a wasteful number, since it uses less digits than its factorization.

30712270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27299.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 30712270 is about 5541.8652094760. The cubic root of 30712270 is about 313.1631400561.

Adding to 30712270 its reverse (7221703), we get a palindrome (37933973).

The spelling of 30712270 in words is "thirty million, seven hundred twelve thousand, two hundred seventy".