230021340 has 48 divisors (see below), whose sum is σ = 646910880. Its totient is φ = 61067520.

The previous prime is 230021293. The next prime is 230021347. The reversal of 230021340 is 43120032.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230021347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5370 + ... + 22110.

It is an arithmetic number, because the mean of its divisors is an integer number (13477310).

Almost surely, 2^230021340 is an apocalyptic number.

230021340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230021340 is an abundant number, since it is smaller than the sum of its proper divisors (416889540).

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

230021340 is a wasteful number, since it uses less digits than its factorization.

230021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16982 (or 16980 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 230021340 is about 15166.4544307495. The cubic root of 230021340 is about 612.7115160084.

Adding to 230021340 its reverse (43120032), we get a palindrome (273141372).

It can be divided in two parts, 23002 and 1340, that added together give a palindrome (24342).

The spelling of 230021340 in words is "two hundred thirty million, twenty-one thousand, three hundred forty".