30830746 has 4 divisors (see below), whose sum is σ = 46246122. Its totient is φ = 15415372.

The previous prime is 30830743. The next prime is 30830753. The reversal of 30830746 is 64703803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64703803 = 3203 ⋅20201.

It can be written as a sum of positive squares in only one way, i.e., 28462225 + 2368521 = 5335^2 + 1539^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30830743) 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 as a sum of consecutive naturals, namely, 7707685 + ... + 7707688.

Almost surely, 2^30830746 is an apocalyptic number.

30830746 is a deficient number, since it is larger than the sum of its proper divisors (15415376).

30830746 is a wasteful number, since it uses less digits than its factorization.

30830746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15415375.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 30830746 is about 5552.5441015808. The cubic root of 30830746 is about 313.5653105827.

The spelling of 30830746 in words is "thirty million, eight hundred thirty thousand, seven hundred forty-six".