30140222 has 32 divisors (see below), whose sum is σ = 54371520. Its totient is φ = 12257280.

The previous prime is 30140221. The next prime is 30140239. The reversal of 30140222 is 22204103.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 30140197 and 30140206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24158 + ... + 25374.

It is an arithmetic number, because the mean of its divisors is an integer number (1699110).

Almost surely, 2^30140222 is an apocalyptic number.

30140222 is a deficient number, since it is larger than the sum of its proper divisors (24231298).

30140222 is a wasteful number, since it uses less digits than its factorization.

30140222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30140222 is about 5490.0111110999. The cubic root of 30140222 is about 311.2066120173.

Adding to 30140222 its reverse (22204103), we get a palindrome (52344325).

The spelling of 30140222 in words is "thirty million, one hundred forty thousand, two hundred twenty-two".