30230520 has 64 divisors (see below), whose sum is σ = 95472000. Its totient is φ = 7636608.

The previous prime is 30230513. The next prime is 30230527. The reversal of 30230520 is 2503203.

It is an interprime number because it is at equal distance from previous prime (30230513) and next prime (30230527).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30230520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230527) 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, 4350 + ... + 8909.

It is an arithmetic number, because the mean of its divisors is an integer number (1491750).

Almost surely, 2^30230520 is an apocalyptic number.

30230520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30230520 is an abundant number, since it is smaller than the sum of its proper divisors (65241480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30230520 is a wasteful number, since it uses less digits than its factorization.

30230520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292 (or 13288 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 30230520 is about 5498.2288057155. The cubic root of 30230520 is about 311.5170865946.

Adding to 30230520 its reverse (2503203), we get a palindrome (32733723).

The spelling of 30230520 in words is "thirty million, two hundred thirty thousand, five hundred twenty".