423421422040 has 32 divisors (see below), whose sum is σ = 957534248880. Its totient is φ = 168508826752.

The previous prime is 423421421999. The next prime is 423421422043. The reversal of 423421422040 is 40224124324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423421422043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26858962 + ... + 26874721.

Almost surely, 2^423421422040 is an apocalyptic number.

423421422040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423421422040 is an abundant number, since it is smaller than the sum of its proper divisors (534112826840).

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

423421422040 is a wasteful number, since it uses less digits than its factorization.

423421422040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53733891 (or 53733887 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 423421422040 its reverse (40224124324), we get a palindrome (463645546364).

The spelling of 423421422040 in words is "four hundred twenty-three billion, four hundred twenty-one million, four hundred twenty-two thousand, forty".