426519684 has 36 divisors (see below), whose sum is σ = 1090269180. Its totient is φ = 140574720.

The previous prime is 426519661. The next prime is 426519697. The reversal of 426519684 is 486915624.

It can be written as a sum of positive squares in 2 ways, for example, as 279625284 + 146894400 = 16722^2 + 12120^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63357 + ... + 69764.

It is an arithmetic number, because the mean of its divisors is an integer number (30285255).

Almost surely, 2^426519684 is an apocalyptic number.

It is an amenable number.

426519684 is an abundant number, since it is smaller than the sum of its proper divisors (663749496).

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

426519684 is a wasteful number, since it uses less digits than its factorization.

426519684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133220 (or 133215 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 426519684 is about 20652.3529894296. The cubic root of 426519684 is about 752.7423656855.

The spelling of 426519684 in words is "four hundred twenty-six million, five hundred nineteen thousand, six hundred eighty-four".