30440985 has 8 divisors (see below), whose sum is σ = 48705600. Its totient is φ = 16235184.

The previous prime is 30440959. The next prime is 30440987. The reversal of 30440985 is 58904403.

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

It is not a de Polignac number, because 30440985 - 2⁷ = 30440857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30440987) 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, 1014685 + ... + 1014714.

It is an arithmetic number, because the mean of its divisors is an integer number (6088200).

Almost surely, 2^30440985 is an apocalyptic number.

It is an amenable number.

30440985 is a deficient number, since it is larger than the sum of its proper divisors (18264615).

30440985 is a wasteful number, since it uses less digits than its factorization.

30440985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029407.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 30440985 is about 5517.3349544866. The cubic root of 30440985 is about 312.2383431086.

The spelling of 30440985 in words is "thirty million, four hundred forty thousand, nine hundred eighty-five".