30272706 has 12 divisors (see below), whose sum is σ = 65590902. Its totient is φ = 10090896.

The previous prime is 30272701. The next prime is 30272743. The reversal of 30272706 is 60727203.

It can be written as a sum of positive squares in only one way, i.e., 25250625 + 5022081 = 5025^2 + 2241^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30272706.

It is not an unprimeable number, because it can be changed into a prime (30272701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 840891 + ... + 840926.

Almost surely, 2^30272706 is an apocalyptic number.

30272706 is an abundant number, since it is smaller than the sum of its proper divisors (35318196).

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

30272706 is a wasteful number, since it uses less digits than its factorization.

30272706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681825 (or 1681822 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 30272706 is about 5502.0637946138. The cubic root of 30272706 is about 311.6619242354.

Adding to 30272706 its reverse (60727203), we get a palindrome (90999909).

The spelling of 30272706 in words is "thirty million, two hundred seventy-two thousand, seven hundred six".