30512226 has 16 divisors (see below), whose sum is σ = 61711200. Its totient is φ = 10056288.

The previous prime is 30512221. The next prime is 30512231. The reversal of 30512226 is 62221503.

It is an interprime number because it is at equal distance from previous prime (30512221) and next prime (30512231).

It is not an unprimeable number, because it can be changed into a prime (30512221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28036 + ... + 29103.

It is an arithmetic number, because the mean of its divisors is an integer number (3856950).

Almost surely, 2^30512226 is an apocalyptic number.

30512226 is an abundant number, since it is smaller than the sum of its proper divisors (31198974).

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

30512226 is a wasteful number, since it uses less digits than its factorization.

30512226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57233.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30512226 is about 5523.7872877221. The cubic root of 30512226 is about 312.4817303453.

Adding to 30512226 its reverse (62221503), we get a palindrome (92733729).

The spelling of 30512226 in words is "thirty million, five hundred twelve thousand, two hundred twenty-six".