231467389440 has 160 divisors (see below), whose sum is σ = 845682837120. Its totient is φ = 52906819584.

The previous prime is 231467389427. The next prime is 231467389441. The reversal of 231467389440 is 44983764132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (231467389441) 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, 2099025 + ... + 2206544.

It is an arithmetic number, because the mean of its divisors is an integer number (5285517732).

Almost surely, 2^231467389440 is an apocalyptic number.

231467389440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231467389440 is an abundant number, since it is smaller than the sum of its proper divisors (614215447680).

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

231467389440 is an equidigital number, since it uses as much as digits as its factorization.

231467389440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305602 (or 4305586 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 231467389440 in words is "two hundred thirty-one billion, four hundred sixty-seven million, three hundred eighty-nine thousand, four hundred forty".