30812241 has 8 divisors (see below), whose sum is σ = 41108704. Its totient is φ = 20528640.

The previous prime is 30812227. The next prime is 30812251. The reversal of 30812241 is 14221803.

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

It is not a de Polignac number, because 30812241 - 2⁷ = 30812113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30812251) by changing a digit.

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, 7185 + ... + 10641.

It is an arithmetic number, because the mean of its divisors is an integer number (5138588).

Almost surely, 2^30812241 is an apocalyptic number.

It is an amenable number.

30812241 is a deficient number, since it is larger than the sum of its proper divisors (10296463).

30812241 is a wasteful number, since it uses less digits than its factorization.

30812241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 30812241 is about 5550.8774981979. The cubic root of 30812241 is about 313.5025627511.

The spelling of 30812241 in words is "thirty million, eight hundred twelve thousand, two hundred forty-one".