230340040 has 128 divisors (see below), whose sum is σ = 645408000. Its totient is φ = 72188928.

The previous prime is 230340031. The next prime is 230340041. The reversal of 230340040 is 40043032.

It is a junction number, because it is equal to n+sod(n) for n = 230339996 and 230340023.

It is not an unprimeable number, because it can be changed into a prime (230340041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153534 + ... + 155026.

It is an arithmetic number, because the mean of its divisors is an integer number (5042250).

Almost surely, 2^230340040 is an apocalyptic number.

230340040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230340040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322704000).

230340040 is an abundant number, since it is smaller than the sum of its proper divisors (415067960).

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

230340040 is a wasteful number, since it uses less digits than its factorization.

230340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 230340040 is about 15176.9575343677. The cubic root of 230340040 is about 612.9943608454.

Adding to 230340040 its reverse (40043032), we get a palindrome (270383072).

The spelling of 230340040 in words is "two hundred thirty million, three hundred forty thousand, forty".