426689456 has 40 divisors (see below), whose sum is σ = 856147584. Its totient is φ = 205793280.

The previous prime is 426689437. The next prime is 426689467. The reversal of 426689456 is 654986624.

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, 173870 + ... + 176306.

Almost surely, 2^426689456 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 426689456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428073792).

426689456 is an abundant number, since it is smaller than the sum of its proper divisors (429458128).

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

426689456 is a wasteful number, since it uses less digits than its factorization.

426689456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2823 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 50.

The square root of 426689456 is about 20656.4628143349. The cubic root of 426689456 is about 752.8422263560.

The spelling of 426689456 in words is "four hundred twenty-six million, six hundred eighty-nine thousand, four hundred fifty-six".