423543017240 has 64 divisors (see below), whose sum is σ = 1090609228800. Its totient is φ = 145014933888.

The previous prime is 423543017237. The next prime is 423543017243. The reversal of 423543017240 is 42710345324.

It is an interprime number because it is at equal distance from previous prime (423543017237) and next prime (423543017243).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 423543017240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423543017243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836780 + ... + 1243899.

It is an arithmetic number, because the mean of its divisors is an integer number (17040769200).

Almost surely, 2^423543017240 is an apocalyptic number.

423543017240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423543017240 is an abundant number, since it is smaller than the sum of its proper divisors (667066211560).

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

423543017240 is a wasteful number, since it uses less digits than its factorization.

423543017240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081424 (or 2081420 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 423543017240 in words is "four hundred twenty-three billion, five hundred forty-three million, seventeen thousand, two hundred forty".