426344928 has 96 divisors (see below), whose sum is σ = 1173263616. Its totient is φ = 135303168.

The previous prime is 426344917. The next prime is 426344929. The reversal of 426344928 is 829443624.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 426344928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426344929) 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, 779151 + ... + 779697.

It is an arithmetic number, because the mean of its divisors is an integer number (12221496).

Almost surely, 2^426344928 is an apocalyptic number.

426344928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426344928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586631808).

426344928 is an abundant number, since it is smaller than the sum of its proper divisors (746918688).

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

426344928 is a wasteful number, since it uses less digits than its factorization.

426344928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 928 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 426344928 is about 20648.1216579136. The cubic root of 426344928 is about 752.6395457221.

The spelling of 426344928 in words is "four hundred twenty-six million, three hundred forty-four thousand, nine hundred twenty-eight".