426726630 has 160 divisors (see below), whose sum is σ = 1279618560. Its totient is φ = 101148480.

The previous prime is 426726581. The next prime is 426726649. The reversal of 426726630 is 36627624.

It is a happy number.

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 418261 + ... + 419279.

It is an arithmetic number, because the mean of its divisors is an integer number (7997616).

Almost surely, 2^426726630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426726630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639809280).

426726630 is an abundant number, since it is smaller than the sum of its proper divisors (852891930).

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

426726630 is a wasteful number, since it uses less digits than its factorization.

426726630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 426726630 is about 20657.3626099752. The cubic root of 426726630 is about 752.8640887385.

The spelling of 426726630 in words is "four hundred twenty-six million, seven hundred twenty-six thousand, six hundred thirty".