226390128 has 40 divisors (see below), whose sum is σ = 585410448. Its totient is φ = 75389952.

The previous prime is 226390123. The next prime is 226390133. The reversal of 226390128 is 821093622.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (226390123) and next prime (226390133).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226390123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73026 + ... + 76062.

Almost surely, 2^226390128 is an apocalyptic number.

It is an amenable number.

226390128 is an abundant number, since it is smaller than the sum of its proper divisors (359020320).

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

226390128 is a wasteful number, since it uses less digits than its factorization.

226390128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601 (or 4595 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 226390128 is about 15046.2662478105. The cubic root of 226390128 is about 609.4702271273.

The spelling of 226390128 in words is "two hundred twenty-six million, three hundred ninety thousand, one hundred twenty-eight".