3640226226 has 64 divisors (see below), whose sum is σ = 9432192000. Its totient is φ = 909527616.

The previous prime is 3640226221. The next prime is 3640226231. The reversal of 3640226226 is 6226220463.

It is an interprime number because it is at equal distance from previous prime (3640226221) and next prime (3640226231).

It is not an unprimeable number, because it can be changed into a prime (3640226221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165076 + ... + 185823.

It is an arithmetic number, because the mean of its divisors is an integer number (147378000).

Almost surely, 2^3640226226 is an apocalyptic number.

3640226226 is an abundant number, since it is smaller than the sum of its proper divisors (5791965774).

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

3640226226 is a wasteful number, since it uses less digits than its factorization.

3640226226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350943.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 3640226226 is about 60334.2873165831. The cubic root of 3640226226 is about 1538.3062034527.

Adding to 3640226226 its reverse (6226220463), we get a palindrome (9866446689).

The spelling of 3640226226 in words is "three billion, six hundred forty million, two hundred twenty-six thousand, two hundred twenty-six".