423005622040 has 64 divisors (see below), whose sum is σ = 985067179200. Its totient is φ = 163287194112.

The previous prime is 423005622019. The next prime is 423005622059. The reversal of 423005622040 is 40226500324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2292669 + ... + 2470291.

It is an arithmetic number, because the mean of its divisors is an integer number (15391674675).

Almost surely, 2^423005622040 is an apocalyptic number.

423005622040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423005622040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492533589600).

423005622040 is an abundant number, since it is smaller than the sum of its proper divisors (562061557160).

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

423005622040 is a wasteful number, since it uses less digits than its factorization.

423005622040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179716 (or 179712 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The spelling of 423005622040 in words is "four hundred twenty-three billion, five million, six hundred twenty-two thousand, forty".