231446455040 has 144 divisors (see below), whose sum is σ = 558693289728. Its totient is φ = 91862335488.

The previous prime is 231446455007. The next prime is 231446455043. The reversal of 231446455040 is 40554644132.

It is a junction number, because it is equal to n+sod(n) for n = 231446454985 and 231446455003.

It is not an unprimeable number, because it can be changed into a prime (231446455043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100759172 + ... + 100761468.

It is an arithmetic number, because the mean of its divisors is an integer number (3879814512).

Almost surely, 2^231446455040 is an apocalyptic number.

231446455040 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 231446455040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279346644864).

231446455040 is an abundant number, since it is smaller than the sum of its proper divisors (327246834688).

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

231446455040 is a wasteful number, since it uses less digits than its factorization.

231446455040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 231446455040 in words is "two hundred thirty-one billion, four hundred forty-six million, four hundred fifty-five thousand, forty".