426643284 has 24 divisors (see below), whose sum is σ = 1038784320. Its totient is φ = 136031104.

The previous prime is 426643279. The next prime is 426643303. The reversal of 426643284 is 482346624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772629 + ... + 773180.

It is an arithmetic number, because the mean of its divisors is an integer number (43282680).

Almost surely, 2^426643284 is an apocalyptic number.

It is an amenable number.

426643284 is an abundant number, since it is smaller than the sum of its proper divisors (612141036).

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

426643284 is a wasteful number, since it uses less digits than its factorization.

426643284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545839 (or 1545837 counting only the distinct ones).

The product of its digits is 221184, while the sum is 39.

The square root of 426643284 is about 20655.3451677768. The cubic root of 426643284 is about 752.8150703962.

The spelling of 426643284 in words is "four hundred twenty-six million, six hundred forty-three thousand, two hundred eighty-four".