231440493375 has 400 divisors, whose sum is σ = 540794223840. Its totient is φ = 97662801600.

The previous prime is 231440493371. The next prime is 231440493443. The reversal of 231440493375 is 573394044132.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

231440493375 is a `hidden beast` number, since 231 + 4 + 4 + 0 + 49 + 3 + 375 = 666.

It is not a de Polignac number, because 231440493375 - 2² = 231440493371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 231440493375 = 1495³ + 6110³ = 4095³ + 5460³.

It is a self number, because there is not a number n which added to its sum of digits gives 231440493375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231440493371) by changing a digit.

It is a polite number, since it can be written in 399 ways as a sum of consecutive naturals, for example, 17803114869 + ... + 17803114881.

Almost surely, 2^231440493375 is an apocalyptic number.

231440493375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231440493375 is an abundant number, since it is smaller than the sum of its proper divisors (309353730465).

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

231440493375 is an frugal number, since it uses more digits than its factorization.

231440493375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 231440493375 in words is "two hundred thirty-one billion, four hundred forty million, four hundred ninety-three thousand, three hundred seventy-five".