30945074 has 16 divisors (see below), whose sum is σ = 48826368. Its totient is φ = 14680512.

The previous prime is 30945071. The next prime is 30945077. The reversal of 30945074 is 47054903.

It is an interprime number because it is at equal distance from previous prime (30945071) and next prime (30945077).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30945074.

It is not an unprimeable number, because it can be changed into a prime (30945071) 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 7 ways as a sum of consecutive naturals, for example, 3194 + ... + 8490.

It is an arithmetic number, because the mean of its divisors is an integer number (3051648).

Almost surely, 2^30945074 is an apocalyptic number.

30945074 is a deficient number, since it is larger than the sum of its proper divisors (17881294).

30945074 is a wasteful number, since it uses less digits than its factorization.

30945074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5449.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 30945074 is about 5562.8296756237. The cubic root of 30945074 is about 313.9524249395.

Adding to 30945074 its reverse (47054903), we get a palindrome (77999977).

The spelling of 30945074 in words is "thirty million, nine hundred forty-five thousand, seventy-four".