226915128 has 128 divisors (see below), whose sum is σ = 703929600. Its totient is φ = 67132800.

The previous prime is 226915127. The next prime is 226915141. The reversal of 226915128 is 821519622.

226915128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 226915092 and 226915101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226915127) 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, 101058 + ... + 103278.

It is an arithmetic number, because the mean of its divisors is an integer number (5499450).

Almost surely, 2^226915128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226915128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351964800).

226915128 is an abundant number, since it is smaller than the sum of its proper divisors (477014472).

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

226915128 is a wasteful number, since it uses less digits than its factorization.

226915128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290 (or 2280 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 226915128 is about 15063.7023337558. The cubic root of 226915128 is about 609.9409850638.

The spelling of 226915128 in words is "two hundred twenty-six million, nine hundred fifteen thousand, one hundred twenty-eight".