226601640 has 48 divisors (see below), whose sum is σ = 736456500. Its totient is φ = 60427008.

The previous prime is 226601611. The next prime is 226601651. The reversal of 226601640 is 46106622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 221592996 + 5008644 = 14886^2 + 2238^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314365 + ... + 315084.

Almost surely, 2^226601640 is an apocalyptic number.

226601640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226601640 is an abundant number, since it is smaller than the sum of its proper divisors (509854860).

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

226601640 is a wasteful number, since it uses less digits than its factorization.

226601640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629466 (or 629459 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 226601640 is about 15053.2933273752. The cubic root of 226601640 is about 609.6599735361.

The spelling of 226601640 in words is "two hundred twenty-six million, six hundred one thousand, six hundred forty".