30227681 has 16 divisors (see below), whose sum is σ = 34674048. Its totient is φ = 26083200.

The previous prime is 30227669. The next prime is 30227723. The reversal of 30227681 is 18672203.

It is a happy number.

It is not a de Polignac number, because 30227681 - 2¹⁰ = 30226657 is a prime.

It is a super-2 number, since 2×30227681² = 1827425397275522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30223681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39341 + ... + 40101.

It is an arithmetic number, because the mean of its divisors is an integer number (2167128).

Almost surely, 2^30227681 is an apocalyptic number.

It is an amenable number.

30227681 is a deficient number, since it is larger than the sum of its proper divisors (4446367).

30227681 is a wasteful number, since it uses less digits than its factorization.

30227681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 30227681 is about 5497.9706256036. The cubic root of 30227681 is about 311.5073345880.

Adding to 30227681 its reverse (18672203), we get a palindrome (48899884).

The spelling of 30227681 in words is "thirty million, two hundred twenty-seven thousand, six hundred eighty-one".