423201404240 has 20 divisors (see below), whose sum is σ = 983943265044. Its totient is φ = 169280561664.

The previous prime is 423201404239. The next prime is 423201404251. The reversal of 423201404240 is 42404102324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 207035920144 + 216165484096 = 455012^2 + 464936^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645008697 + ... + 2645008856.

Almost surely, 2^423201404240 is an apocalyptic number.

423201404240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423201404240 is an abundant number, since it is smaller than the sum of its proper divisors (560741860804).

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

423201404240 is a wasteful number, since it uses less digits than its factorization.

423201404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290017566 (or 5290017560 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 423201404240 its reverse (42404102324), we get a palindrome (465605506564).

The spelling of 423201404240 in words is "four hundred twenty-three billion, two hundred one million, four hundred four thousand, two hundred forty".