30707146 has 8 divisors (see below), whose sum is σ = 46144224. Its totient is φ = 15325740.

The previous prime is 30707141. The next prime is 30707177. The reversal of 30707146 is 64170703.

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

It is not an unprimeable number, because it can be changed into a prime (30707141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12510 + ... + 14761.

It is an arithmetic number, because the mean of its divisors is an integer number (5768028).

Almost surely, 2^30707146 is an apocalyptic number.

30707146 is a deficient number, since it is larger than the sum of its proper divisors (15437078).

30707146 is a wasteful number, since it uses less digits than its factorization.

30707146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27836.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 30707146 is about 5541.4028909654. The cubic root of 30707146 is about 313.1457231608.

Adding to 30707146 its reverse (64170703), we get a palindrome (94877849).

The spelling of 30707146 in words is "thirty million, seven hundred seven thousand, one hundred forty-six".