30819230 has 16 divisors (see below), whose sum is σ = 59742144. Its totient is φ = 11379360.

The previous prime is 30819227. The next prime is 30819247. The reversal of 30819230 is 3291803.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30819230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118406 + ... + 118665.

It is an arithmetic number, because the mean of its divisors is an integer number (3733884).

Almost surely, 2^30819230 is an apocalyptic number.

30819230 is a deficient number, since it is larger than the sum of its proper divisors (28922914).

30819230 is a wasteful number, since it uses less digits than its factorization.

30819230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237091.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30819230 is about 5551.5070026075. The cubic root of 30819230 is about 313.5262644109.

The spelling of 30819230 in words is "thirty million, eight hundred nineteen thousand, two hundred thirty".