426783402 has 48 divisors (see below), whose sum is σ = 981337032. Its totient is φ = 133585920.

The previous prime is 426783397. The next prime is 426783431. The reversal of 426783402 is 204387624.

It can be written as a sum of positive squares in 4 ways, for example, as 258277041 + 168506361 = 16071^2 + 12981^2 .

It is an unprimeable number.

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, 158088 + ... + 160764.

Almost surely, 2^426783402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426783402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490668516).

426783402 is an abundant number, since it is smaller than the sum of its proper divisors (554553630).

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

426783402 is a wasteful number, since it uses less digits than its factorization.

426783402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223 (or 3220 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 426783402 is about 20658.7366990337. The cubic root of 426783402 is about 752.8974744408.

The spelling of 426783402 in words is "four hundred twenty-six million, seven hundred eighty-three thousand, four hundred two".