226756638 has 32 divisors (see below), whose sum is σ = 505094400. Its totient is φ = 75406968.

The previous prime is 226756637. The next prime is 226756639. The reversal of 226756638 is 836657622.

It is a happy number.

226756638 is a `hidden beast` number, since 2 + 2 + 6 + 7 + 5 + 6 + 638 = 666.

It is an interprime number because it is at equal distance from previous prime (226756637) and next prime (226756639).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 226756593 and 226756602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226756637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19183 + ... + 28661.

It is an arithmetic number, because the mean of its divisors is an integer number (15784200).

Almost surely, 2^226756638 is an apocalyptic number.

226756638 is an abundant number, since it is smaller than the sum of its proper divisors (278337762).

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

226756638 is a wasteful number, since it uses less digits than its factorization.

226756638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9933 (or 9927 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 226756638 is about 15058.4407559349. The cubic root of 226756638 is about 609.7989465511.

The spelling of 226756638 in words is "two hundred twenty-six million, seven hundred fifty-six thousand, six hundred thirty-eight".