426685808 has 20 divisors (see below), whose sum is σ = 831974280. Its totient is φ = 211982784.

The previous prime is 426685807. The next prime is 426685823. The reversal of 426685808 is 808586624.

It is a super-2 number, since 2×426685808² = 364121557497225728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426685801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82418 + ... + 87441.

It is an arithmetic number, because the mean of its divisors is an integer number (41598714).

Almost surely, 2^426685808 is an apocalyptic number.

It is an amenable number.

426685808 is a deficient number, since it is larger than the sum of its proper divisors (405288472).

426685808 is a wasteful number, since it uses less digits than its factorization.

426685808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170024 (or 170018 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The square root of 426685808 is about 20656.3745124840. The cubic root of 426685808 is about 752.8400808642.

The spelling of 426685808 in words is "four hundred twenty-six million, six hundred eighty-five thousand, eight hundred eight".