230621040 has 320 divisors, whose sum is σ = 879943680. Its totient is φ = 55157760.

The previous prime is 230621009. The next prime is 230621047. The reversal of 230621040 is 40126032.

It is a happy number.

230621040 is a `hidden beast` number, since 2 + 3 + 0 + 621 + 0 + 40 = 666.

230621040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230621047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1207345 + ... + 1207535.

It is an arithmetic number, because the mean of its divisors is an integer number (2749824).

Almost surely, 2^230621040 is an apocalyptic number.

230621040 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 230621040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439971840).

230621040 is an abundant number, since it is smaller than the sum of its proper divisors (649322640).

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

230621040 is a wasteful number, since it uses less digits than its factorization.

230621040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 230621040 is about 15186.2121676210. The cubic root of 230621040 is about 613.2435307503.

Adding to 230621040 its reverse (40126032), we get a palindrome (270747072).

The spelling of 230621040 in words is "two hundred thirty million, six hundred twenty-one thousand, forty".