30706730 has 16 divisors (see below), whose sum is σ = 56558304. Its totient is φ = 11996880.

The previous prime is 30706723. The next prime is 30706751. The reversal of 30706730 is 3760703.

It is a self number, because there is not a number n which added to its sum of digits gives 30706730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35276 + ... + 36135.

It is an arithmetic number, because the mean of its divisors is an integer number (3534894).

Almost surely, 2^30706730 is an apocalyptic number.

30706730 is a deficient number, since it is larger than the sum of its proper divisors (25851574).

30706730 is a wasteful number, since it uses less digits than its factorization.

30706730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71461.

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 30706730 is about 5541.3653552171. The cubic root of 30706730 is about 313.1443090577.

The spelling of 30706730 in words is "thirty million, seven hundred six thousand, seven hundred thirty".