220726026 has 64 divisors (see below), whose sum is σ = 503418240. Its totient is φ = 71660160.

The previous prime is 220726019. The next prime is 220726027. The reversal of 220726026 is 620627022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (220726027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 666681 + ... + 667011.

It is an arithmetic number, because the mean of its divisors is an integer number (7865910).

Almost surely, 2^220726026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220726026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251709120).

220726026 is an abundant number, since it is smaller than the sum of its proper divisors (282692214).

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

220726026 is a wasteful number, since it uses less digits than its factorization.

220726026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 220726026 is about 14856.8511468615. The cubic root of 220726026 is about 604.3444174721.

The spelling of 220726026 in words is "two hundred twenty million, seven hundred twenty-six thousand, twenty-six".