30120430 has 32 divisors (see below), whose sum is σ = 58506624. Its totient is φ = 11122176.

The previous prime is 30120427. The next prime is 30120439. The reversal of 30120430 is 3402103.

It is a self number, because there is not a number n which added to its sum of digits gives 30120430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7339 + ... + 10681.

It is an arithmetic number, because the mean of its divisors is an integer number (1828332).

Almost surely, 2^30120430 is an apocalyptic number.

30120430 is a deficient number, since it is larger than the sum of its proper divisors (28386194).

30120430 is a wasteful number, since it uses less digits than its factorization.

30120430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30120430 is about 5488.2082686429. The cubic root of 30120430 is about 311.1384777041.

Adding to 30120430 its reverse (3402103), we get a palindrome (33522533).

The spelling of 30120430 in words is "thirty million, one hundred twenty thousand, four hundred thirty".