226396989 has 48 divisors (see below), whose sum is σ = 423696000. Its totient is φ = 113125248.

The previous prime is 226396967. The next prime is 226397009. The reversal of 226396989 is 989693622.

It is not a de Polignac number, because 226396989 - 2⁸ = 226396733 is a prime.

It is a super-2 number, since 2×226396989² = 102511193256532242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226396909) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8287 + ... + 22835.

It is an arithmetic number, because the mean of its divisors is an integer number (8827000).

Almost surely, 2^226396989 is an apocalyptic number.

It is an amenable number.

226396989 is a deficient number, since it is larger than the sum of its proper divisors (197299011).

226396989 is a wasteful number, since it uses less digits than its factorization.

226396989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14594 (or 14591 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 226396989 is about 15046.4942428461. The cubic root of 226396989 is about 609.4763839520.

The spelling of 226396989 in words is "two hundred twenty-six million, three hundred ninety-six thousand, nine hundred eighty-nine".