423454452520 has 32 divisors (see below), whose sum is σ = 1039388202720. Its totient is φ = 153983437120.

The previous prime is 423454452469. The next prime is 423454452523. The reversal of 423454452520 is 25254454324.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (423454452523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 481197802 + ... + 481198681.

It is an arithmetic number, because the mean of its divisors is an integer number (32480881335).

Almost surely, 2^423454452520 is an apocalyptic number.

423454452520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423454452520 is an abundant number, since it is smaller than the sum of its proper divisors (615933750200).

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

423454452520 is a wasteful number, since it uses less digits than its factorization.

423454452520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962396505 (or 962396501 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 40.

The spelling of 423454452520 in words is "four hundred twenty-three billion, four hundred fifty-four million, four hundred fifty-two thousand, five hundred twenty".