427634256 has 80 divisors (see below), whose sum is σ = 1268018048. Its totient is φ = 121651200.

The previous prime is 427634209. The next prime is 427634287. The reversal of 427634256 is 652436724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78336 + ... + 83616.

Almost surely, 2^427634256 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 427634256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634009024).

427634256 is an abundant number, since it is smaller than the sum of its proper divisors (840383792).

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

427634256 is a wasteful number, since it uses less digits than its factorization.

427634256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5540 (or 5534 counting only the distinct ones).

The product of its digits is 241920, while the sum is 39.

The square root of 427634256 is about 20679.3195245878. The cubic root of 427634256 is about 753.3974787227.

The spelling of 427634256 in words is "four hundred twenty-seven million, six hundred thirty-four thousand, two hundred fifty-six".