426442144 has 48 divisors (see below), whose sum is σ = 894784968. Its totient is φ = 199360512.

The previous prime is 426442123. The next prime is 426442151. The reversal of 426442144 is 441244624.

It can be written as a sum of positive squares in 4 ways, for example, as 352688400 + 73753744 = 18780^2 + 8588^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82912 + ... + 87904.

Almost surely, 2^426442144 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 426442144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447392484).

426442144 is an abundant number, since it is smaller than the sum of its proper divisors (468342824).

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

426442144 is a wasteful number, since it uses less digits than its factorization.

426442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177 (or 5169 counting only the distinct ones).

The product of its digits is 24576, while the sum is 31.

The square root of 426442144 is about 20650.4756361688. The cubic root of 426442144 is about 752.6967474858.

Adding to 426442144 its reverse (441244624), we get a palindrome (867686768).

The spelling of 426442144 in words is "four hundred twenty-six million, four hundred forty-two thousand, one hundred forty-four".