40440226 has 8 divisors (see below), whose sum is σ = 60855084. Its totient is φ = 20155200.

The previous prime is 40440221. The next prime is 40440259. The reversal of 40440226 is 62204404.

It can be written as a sum of positive squares in 2 ways, for example, as 39879225 + 561001 = 6315^2 + 749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40440197 and 40440206.

It is not an unprimeable number, because it can be changed into a prime (40440221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31675 + ... + 32926.

Almost surely, 2^40440226 is an apocalyptic number.

40440226 is a deficient number, since it is larger than the sum of its proper divisors (20414858).

40440226 is a wasteful number, since it uses less digits than its factorization.

40440226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64916.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 40440226 is about 6359.2630076134. The cubic root of 40440226 is about 343.2452410643.

The spelling of 40440226 in words is "forty million, four hundred forty thousand, two hundred twenty-six".