30278230 has 8 divisors (see below), whose sum is σ = 54500832. Its totient is φ = 12111288.

The previous prime is 30278221. The next prime is 30278243. The reversal of 30278230 is 3287203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30278195 and 30278204.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1513902 + ... + 1513921.

It is an arithmetic number, because the mean of its divisors is an integer number (6812604).

Almost surely, 2^30278230 is an apocalyptic number.

30278230 is a deficient number, since it is larger than the sum of its proper divisors (24222602).

30278230 is a wasteful number, since it uses less digits than its factorization.

30278230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027830.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 30278230 is about 5502.5657651681. The cubic root of 30278230 is about 311.6808798777.

The spelling of 30278230 in words is "thirty million, two hundred seventy-eight thousand, two hundred thirty".