423845120 has 72 divisors (see below), whose sum is σ = 1023075144. Its totient is φ = 168230912.

The previous prime is 423845117. The next prime is 423845137. The reversal of 423845120 is 21548324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 166306816 + 257538304 = 12896^2 + 16048^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174152 + ... + 176568.

It is an arithmetic number, because the mean of its divisors is an integer number (14209377).

Almost surely, 2^423845120 is an apocalyptic number.

423845120 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 423845120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511537572).

423845120 is an abundant number, since it is smaller than the sum of its proper divisors (599230024).

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

423845120 is a wasteful number, since it uses less digits than its factorization.

423845120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 423845120 is about 20587.4991196114. The cubic root of 423845120 is about 751.1656658773.

The spelling of 423845120 in words is "four hundred twenty-three million, eight hundred forty-five thousand, one hundred twenty".