426217846 has 16 divisors (see below), whose sum is σ = 677356560. Its totient is φ = 200448000.

The previous prime is 426217817. The next prime is 426217859. The reversal of 426217846 is 648712624.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 426217799 and 426217808.

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, 73750 + ... + 79318.

It is an arithmetic number, because the mean of its divisors is an integer number (42334785).

Almost surely, 2^426217846 is an apocalyptic number.

426217846 is a deficient number, since it is larger than the sum of its proper divisors (251138714).

426217846 is a wasteful number, since it uses less digits than its factorization.

426217846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7839.

The product of its digits is 129024, while the sum is 40.

The square root of 426217846 is about 20645.0441026412. The cubic root of 426217846 is about 752.5647577298.

Subtracting from 426217846 its sum of digits (40), we obtain a triangular number (426217806 = T₂₉₁₉₆).

The spelling of 426217846 in words is "four hundred twenty-six million, two hundred seventeen thousand, eight hundred forty-six".