30340681 has 8 divisors (see below), whose sum is σ = 34949120. Its totient is φ = 25800768.

The previous prime is 30340637. The next prime is 30340741. The reversal of 30340681 is 18604303.

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

It is not a de Polignac number, because 30340681 - 2⁷ = 30340553 is a prime.

It is a super-2 number, since 2×30340681² = 1841113847087522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30340081) 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, 16176 + ... + 17953.

It is an arithmetic number, because the mean of its divisors is an integer number (4368640).

Almost surely, 2^30340681 is an apocalyptic number.

It is an amenable number.

30340681 is a deficient number, since it is larger than the sum of its proper divisors (4608439).

30340681 is a wasteful number, since it uses less digits than its factorization.

30340681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34263.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30340681 is about 5508.2375584210. The cubic root of 30340681 is about 311.8950207026.

Adding to 30340681 its reverse (18604303), we get a palindrome (48944984).

The spelling of 30340681 in words is "thirty million, three hundred forty thousand, six hundred eighty-one".