40440752226 has 120 divisors (see below), whose sum is σ = 111612964716. Its totient is φ = 10874787840.

The previous prime is 40440752221. The next prime is 40440752249. The reversal of 40440752226 is 62225704404.

It can be written as a sum of positive squares in 2 ways, for example, as 36270821601 + 4169930625 = 190449^2 + 64575^2 .

It is not an unprimeable number, because it can be changed into a prime (40440752221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 14895 + ... + 284786.

Almost surely, 2^40440752226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40440752226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55806482358).

40440752226 is an abundant number, since it is smaller than the sum of its proper divisors (71172212490).

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

40440752226 is a wasteful number, since it uses less digits than its factorization.

40440752226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299726 (or 299710 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 40440752226 in words is "forty billion, four hundred forty million, seven hundred fifty-two thousand, two hundred twenty-six".