423420205342040 has 32 divisors (see below), whose sum is σ = 955144550646000. Its totient is φ = 168932688603264.

The previous prime is 423420205342037. The next prime is 423420205342073. The reversal of 423420205342040 is 40243502024324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13606032170 + ... + 13606063289.

Almost surely, 2^{423420205342040} is an apocalyptic number.

423420205342040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423420205342040 is an abundant number, since it is smaller than the sum of its proper divisors (531724345303960).

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

423420205342040 is a wasteful number, since it uses less digits than its factorization.

423420205342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27212095859 (or 27212095855 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 423420205342040 its reverse (40243502024324), we get a palindrome (463663707366364).

The spelling of 423420205342040 in words is "four hundred twenty-three trillion, four hundred twenty billion, two hundred five million, three hundred forty-two thousand, forty".