30804681 has 8 divisors (see below), whose sum is σ = 43234720. Its totient is φ = 19455552.

The previous prime is 30804679. The next prime is 30804689. The reversal of 30804681 is 18640803.

It is a happy number.

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

It is not a de Polignac number, because 30804681 - 2¹ = 30804679 is a prime.

It is a super-2 number, since 2×30804681² = 1897856743023522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30804689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270160 + ... + 270273.

It is an arithmetic number, because the mean of its divisors is an integer number (5404340).

Almost surely, 2^30804681 is an apocalyptic number.

It is an amenable number.

30804681 is a deficient number, since it is larger than the sum of its proper divisors (12430039).

30804681 is a wasteful number, since it uses less digits than its factorization.

30804681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540455.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 30804681 is about 5550.1964830085. The cubic root of 30804681 is about 313.4769206344.

The spelling of 30804681 in words is "thirty million, eight hundred four thousand, six hundred eighty-one".