30227772 has 12 divisors (see below), whose sum is σ = 70531496. Its totient is φ = 10075920.

The previous prime is 30227749. The next prime is 30227777. The reversal of 30227772 is 27772203.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30227777) 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, 1259479 + ... + 1259502.

Almost surely, 2^30227772 is an apocalyptic number.

It is an amenable number.

30227772 is an abundant number, since it is smaller than the sum of its proper divisors (40303724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30227772 is a wasteful number, since it uses less digits than its factorization.

30227772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518988 (or 2518986 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 30227772 is about 5497.9789013782. The cubic root of 30227772 is about 311.5076471838.

Adding to 30227772 its reverse (27772203), we get a palindrome (57999975).

The spelling of 30227772 in words is "thirty million, two hundred twenty-seven thousand, seven hundred seventy-two".