226908906 has 80 divisors (see below), whose sum is σ = 557959200. Its totient is φ = 61344864.

The previous prime is 226908881. The next prime is 226908931. The reversal of 226908906 is 609809622.

It is an interprime number because it is at equal distance from previous prime (226908881) and next prime (226908931).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 273300 + ... + 274128.

It is an arithmetic number, because the mean of its divisors is an integer number (6974490).

Almost surely, 2^226908906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226908906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278979600).

226908906 is an abundant number, since it is smaller than the sum of its proper divisors (331050294).

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

226908906 is an equidigital number, since it uses as much as digits as its factorization.

226908906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 226908906 is about 15063.4958094063. The cubic root of 226908906 is about 609.9354101637.

The spelling of 226908906 in words is "two hundred twenty-six million, nine hundred eight thousand, nine hundred six".