226640136 has 32 divisors (see below), whose sum is σ = 571069440. Its totient is φ = 74950848.

The previous prime is 226640131. The next prime is 226640147. The reversal of 226640136 is 631046622.

It is not an unprimeable number, because it can be changed into a prime (226640131) 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, 34131 + ... + 40226.

It is an arithmetic number, because the mean of its divisors is an integer number (17845920).

Almost surely, 2^226640136 is an apocalyptic number.

It is an amenable number.

226640136 is an abundant number, since it is smaller than the sum of its proper divisors (344429304).

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

226640136 is a wasteful number, since it uses less digits than its factorization.

226640136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74493 (or 74489 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 226640136 is about 15054.5719301480. The cubic root of 226640136 is about 609.6944954125.

Adding to 226640136 its reverse (631046622), we get a palindrome (857686758).

The spelling of 226640136 in words is "two hundred twenty-six million, six hundred forty thousand, one hundred thirty-six".