423417852 has 144 divisors (see below), whose sum is σ = 1266396768. Its totient is φ = 117596160.

The previous prime is 423417847. The next prime is 423417857. The reversal of 423417852 is 258714324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (423417847) and next prime (423417857).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423417857) 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 47 ways as a sum of consecutive naturals, for example, 1199308 + ... + 1199660.

It is an arithmetic number, because the mean of its divisors is an integer number (8794422).

Almost surely, 2^423417852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423417852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633198384).

423417852 is an abundant number, since it is smaller than the sum of its proper divisors (842978916).

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

423417852 is a wasteful number, since it uses less digits than its factorization.

423417852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 615 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 423417852 is about 20577.1196235042. The cubic root of 423417852 is about 750.9131703752.

The spelling of 423417852 in words is "four hundred twenty-three million, four hundred seventeen thousand, eight hundred fifty-two".