426535680 has 144 divisors (see below), whose sum is σ = 1370575584. Its totient is φ = 113049600.

The previous prime is 426535673. The next prime is 426535687. The reversal of 426535680 is 86535624.

It is an interprime number because it is at equal distance from previous prime (426535673) and next prime (426535687).

It is not an unprimeable number, because it can be changed into a prime (426535687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1063480 + ... + 1063880.

It is an arithmetic number, because the mean of its divisors is an integer number (9517886).

Almost surely, 2^426535680 is an apocalyptic number.

426535680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426535680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685287792).

426535680 is an abundant number, since it is smaller than the sum of its proper divisors (944039904).

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

426535680 is a wasteful number, since it uses less digits than its factorization.

426535680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 426535680 is about 20652.7402540196. The cubic root of 426535680 is about 752.7517757369.

The spelling of 426535680 in words is "four hundred twenty-six million, five hundred thirty-five thousand, six hundred eighty".