426703220 has 54 divisors (see below), whose sum is σ = 932170806. Its totient is φ = 164066880.

The previous prime is 426703201. The next prime is 426703237. The reversal of 426703220 is 22307624.

It can be written as a sum of positive squares in 3 ways, for example, as 5550736 + 421152484 = 2356^2 + 20522^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 426703220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2863706 + ... + 2863854.

Almost surely, 2^426703220 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 426703220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466085403).

426703220 is an abundant number, since it is smaller than the sum of its proper divisors (505467586).

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

426703220 is a wasteful number, since it uses less digits than its factorization.

426703220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 426703220 is about 20656.7959761431. The cubic root of 426703220 is about 752.8503212432.

The spelling of 426703220 in words is "four hundred twenty-six million, seven hundred three thousand, two hundred twenty".