426018252 has 72 divisors (see below), whose sum is σ = 1099339696. Its totient is φ = 128304000.

The previous prime is 426018251. The next prime is 426018269. The reversal of 426018252 is 252810624.

It is not an unprimeable number, because it can be changed into a prime (426018251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262002 + ... + 263622.

Almost surely, 2^426018252 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 426018252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549669848).

426018252 is an abundant number, since it is smaller than the sum of its proper divisors (673321444).

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

426018252 is a wasteful number, since it uses less digits than its factorization.

426018252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 426018252 is about 20640.2095919591. The cubic root of 426018252 is about 752.4472662759.

Adding to 426018252 its reverse (252810624), we get a palindrome (678828876).

The spelling of 426018252 in words is "four hundred twenty-six million, eighteen thousand, two hundred fifty-two".