30681226 has 8 divisors (see below), whose sum is σ = 48729060. Its totient is φ = 14438208.

The previous prime is 30681221. The next prime is 30681247. The reversal of 30681226 is 62218603.

It can be written as a sum of positive squares in 2 ways, for example, as 30239001 + 442225 = 5499^2 + 665^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 30681194 and 30681203.

It is not an unprimeable number, because it can be changed into a prime (30681221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451161 + ... + 451228.

Almost surely, 2^30681226 is an apocalyptic number.

30681226 is a deficient number, since it is larger than the sum of its proper divisors (18047834).

30681226 is a wasteful number, since it uses less digits than its factorization.

30681226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902408.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30681226 is about 5539.0636392806. The cubic root of 30681226 is about 313.0575892564.

Adding to 30681226 its reverse (62218603), we get a palindrome (92899829).

The spelling of 30681226 in words is "thirty million, six hundred eighty-one thousand, two hundred twenty-six".