230215440 has 320 divisors, whose sum is σ = 895942656. Its totient is φ = 47609856.

The previous prime is 230215429. The next prime is 230215459. The reversal of 230215440 is 44512032.

230215440 is digitally balanced in base 2, 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 (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1812657 + ... + 1812783.

Almost surely, 2^230215440 is an apocalyptic number.

230215440 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 230215440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447971328).

230215440 is an abundant number, since it is smaller than the sum of its proper divisors (665727216).

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

230215440 is a wasteful number, since it uses less digits than its factorization.

230215440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 230215440 is about 15172.8520720397. The cubic root of 230215440 is about 612.8838099780.

Adding to 230215440 its reverse (44512032), we get a palindrome (274727472).

The spelling of 230215440 in words is "two hundred thirty million, two hundred fifteen thousand, four hundred forty".