6423244416240 has 40 divisors (see below), whose sum is σ = 19912057691088. Its totient is φ = 1712865177600.

The previous prime is 6423244416233. The next prime is 6423244416241. The reversal of 6423244416240 is 426144423246.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 6423244416192 and 6423244416201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423244416241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13381758961 + ... + 13381759440.

Almost surely, 2^{6423244416240} is an apocalyptic number.

6423244416240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6423244416240 is an abundant number, since it is smaller than the sum of its proper divisors (13488813274848).

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

6423244416240 is a wasteful number, since it uses less digits than its factorization.

6423244416240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26763518417 (or 26763518411 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 42.

Adding to 6423244416240 its reverse (426144423246), we get a palindrome (6849388839486).

The spelling of 6423244416240 in words is "six trillion, four hundred twenty-three billion, two hundred forty-four million, four hundred sixteen thousand, two hundred forty".