424588172020 has 12 divisors (see below), whose sum is σ = 891635161284. Its totient is φ = 169835268800.

The previous prime is 424588171981. The next prime is 424588172033. The reversal of 424588172020 is 20271885424.

It can be written as a sum of positive squares in 2 ways, for example, as 337091715216 + 87496456804 = 580596^2 + 295798^2 .

It is a super-2 number, since 2×424588172020² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10614704281 + ... + 10614704320.

It is an arithmetic number, because the mean of its divisors is an integer number (74302930107).

Almost surely, 2^424588172020 is an apocalyptic number.

It is an amenable number.

424588172020 is an abundant number, since it is smaller than the sum of its proper divisors (467046989264).

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

424588172020 is a wasteful number, since it uses less digits than its factorization.

424588172020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21229408610 (or 21229408608 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 424588172020 in words is "four hundred twenty-four billion, five hundred eighty-eight million, one hundred seventy-two thousand, twenty".