30102830 has 16 divisors (see below), whose sum is σ = 55650240. Its totient is φ = 11715552.

The previous prime is 30102827. The next prime is 30102847. The reversal of 30102830 is 3820103.

It is a junction number, because it is equal to n+sod(n) for n = 30102799 and 30102808.

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, 40310 + ... + 41049.

It is an arithmetic number, because the mean of its divisors is an integer number (3478140).

Almost surely, 2^30102830 is an apocalyptic number.

30102830 is a deficient number, since it is larger than the sum of its proper divisors (25547410).

30102830 is a wasteful number, since it uses less digits than its factorization.

30102830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81403.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30102830 is about 5486.6045966517. The cubic root of 30102830 is about 311.0778643138.

Adding to 30102830 its reverse (3820103), we get a palindrome (33922933).

The spelling of 30102830 in words is "thirty million, one hundred two thousand, eight hundred thirty".