30040738 has 16 divisors (see below), whose sum is σ = 55460160. Its totient is φ = 11884176.

The previous prime is 30040721. The next prime is 30040757. The reversal of 30040738 is 83704003.

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, 82348 + ... + 82711.

It is an arithmetic number, because the mean of its divisors is an integer number (3466260).

Almost surely, 2^30040738 is an apocalyptic number.

30040738 is a deficient number, since it is larger than the sum of its proper divisors (25419422).

30040738 is a wasteful number, since it uses less digits than its factorization.

30040738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165081.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 30040738 is about 5480.9431670106. The cubic root of 30040738 is about 310.8638341334.

The spelling of 30040738 in words is "thirty million, forty thousand, seven hundred thirty-eight".