30642794 has 32 divisors (see below), whose sum is σ = 57165696. Its totient is φ = 11995200.

The previous prime is 30642793. The next prime is 30642811. The reversal of 30642794 is 49724603.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30642791) 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 15 ways as a sum of consecutive naturals, for example, 17549 + ... + 19215.

It is an arithmetic number, because the mean of its divisors is an integer number (1786428).

Almost surely, 2^30642794 is an apocalyptic number.

30642794 is a deficient number, since it is larger than the sum of its proper divisors (26522902).

30642794 is a wasteful number, since it uses less digits than its factorization.

30642794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 30642794 is about 5535.5933737947. The cubic root of 30642794 is about 312.9268202928.

The spelling of 30642794 in words is "thirty million, six hundred forty-two thousand, seven hundred ninety-four".