230320540 has 24 divisors (see below), whose sum is σ = 490894992. Its totient is φ = 90752640.

The previous prime is 230320537. The next prime is 230320543. The reversal of 230320540 is 45023032.

It is an interprime number because it is at equal distance from previous prime (230320537) and next prime (230320543).

It is a super-2 number, since 2×230320540² = 106095102291783200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230320543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84601 + ... + 87280.

It is an arithmetic number, because the mean of its divisors is an integer number (20453958).

Almost surely, 2^230320540 is an apocalyptic number.

230320540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230320540 is an abundant number, since it is smaller than the sum of its proper divisors (260574452).

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

230320540 is a wasteful number, since it uses less digits than its factorization.

230320540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171957 (or 171955 counting only the distinct ones).

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

The square root of 230320540 is about 15176.3150995227. The cubic root of 230320540 is about 612.9770621778.

Adding to 230320540 its reverse (45023032), we get a palindrome (275343572).

It can be divided in two parts, 230320 and 540, that added together give a triangular number (230860 = T₆₇₉).

The spelling of 230320540 in words is "two hundred thirty million, three hundred twenty thousand, five hundred forty".