426540438 has 64 divisors (see below), whose sum is σ = 1008504000. Its totient is φ = 133166592.

The previous prime is 426540431. The next prime is 426540467. The reversal of 426540438 is 834045624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426540431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209208 + ... + 211236.

It is an arithmetic number, because the mean of its divisors is an integer number (15757875).

Almost surely, 2^426540438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426540438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504252000).

426540438 is an abundant number, since it is smaller than the sum of its proper divisors (581963562).

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

426540438 is a wasteful number, since it uses less digits than its factorization.

426540438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2280 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 426540438 is about 20652.8554442237. The cubic root of 426540438 is about 752.7545747052.

The spelling of 426540438 in words is "four hundred twenty-six million, five hundred forty thousand, four hundred thirty-eight".