30322772 has 12 divisors (see below), whose sum is σ = 53116980. Its totient is φ = 15146496.

The previous prime is 30322771. The next prime is 30322829. The reversal of 30322772 is 27722303.

It can be written as a sum of positive squares in 2 ways, for example, as 12716356 + 17606416 = 3566^2 + 4196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30322771) 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, 1754 + ... + 7982.

It is an arithmetic number, because the mean of its divisors is an integer number (4426415).

Almost surely, 2^30322772 is an apocalyptic number.

It is an amenable number.

30322772 is a deficient number, since it is larger than the sum of its proper divisors (22794208).

30322772 is a wasteful number, since it uses less digits than its factorization.

30322772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7450 (or 7448 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 30322772 is about 5506.6116623564. The cubic root of 30322772 is about 311.8336418638.

The spelling of 30322772 in words is "thirty million, three hundred twenty-two thousand, seven hundred seventy-two".