4013226 has 40 divisors (see below), whose sum is σ = 10280160. Its totient is φ = 1146312.

The previous prime is 4013209. The next prime is 4013227. The reversal of 4013226 is 6223104.

It is a happy number.

It is a super-2 number, since 2×4013226² = 32211965854152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4013199 and 4013208.

It is not an unprimeable number, because it can be changed into a prime (4013227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 636 + ... + 2903.

It is an arithmetic number, because the mean of its divisors is an integer number (257004).

Almost surely, 2^4013226 is an apocalyptic number.

4013226 is an abundant number, since it is smaller than the sum of its proper divisors (6266934).

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

4013226 is a wasteful number, since it uses less digits than its factorization.

4013226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560 (or 3551 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4013226 is about 2003.3037712738. The cubic root of 4013226 is about 158.9148707699.

The spelling of 4013226 in words is "four million, thirteen thousand, two hundred twenty-six".