30234520 has 16 divisors (see below), whose sum is σ = 68027760. Its totient is φ = 12093792.

The previous prime is 30234497. The next prime is 30234521. The reversal of 30234520 is 2543203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30234521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377892 + ... + 377971.

It is an arithmetic number, because the mean of its divisors is an integer number (4251735).

Almost surely, 2^30234520 is an apocalyptic number.

It is an amenable number.

30234520 is an abundant number, since it is smaller than the sum of its proper divisors (37793240).

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

30234520 is a wasteful number, since it uses less digits than its factorization.

30234520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755874 (or 755870 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30234520 is about 5498.5925471888. The cubic root of 30234520 is about 311.5308256172.

Adding to 30234520 its reverse (2543203), we get a palindrome (32777723).

The spelling of 30234520 in words is "thirty million, two hundred thirty-four thousand, five hundred twenty".