423502552 has 64 divisors (see below), whose sum is σ = 916502400. Its totient is φ = 181440000.

The previous prime is 423502543. The next prime is 423502553. The reversal of 423502552 is 255205324.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 423502552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423502553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402427 + ... + 403477.

It is an arithmetic number, because the mean of its divisors is an integer number (14320350).

Almost surely, 2^423502552 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 423502552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458251200).

423502552 is an abundant number, since it is smaller than the sum of its proper divisors (492999848).

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

423502552 is a wasteful number, since it uses less digits than its factorization.

423502552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 423502552 is about 20579.1776317714. The cubic root of 423502552 is about 750.9632376273.

Adding to 423502552 its reverse (255205324), we get a palindrome (678707876).

The spelling of 423502552 in words is "four hundred twenty-three million, five hundred two thousand, five hundred fifty-two".