426634026 has 64 divisors (see below), whose sum is σ = 1055932416. Its totient is φ = 111902400.

The previous prime is 426633979. The next prime is 426634063. The reversal of 426634026 is 620436624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102241 + ... + 106331.

It is an arithmetic number, because the mean of its divisors is an integer number (16498944).

Almost surely, 2^426634026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426634026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527966208).

426634026 is an abundant number, since it is smaller than the sum of its proper divisors (629298390).

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

426634026 is a wasteful number, since it uses less digits than its factorization.

426634026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 426634026 is about 20655.1210599212. The cubic root of 426634026 is about 752.8096250882.

The spelling of 426634026 in words is "four hundred twenty-six million, six hundred thirty-four thousand, twenty-six".