40806224 has 40 divisors (see below), whose sum is σ = 83700000. Its totient is φ = 19218816.

The previous prime is 40806223. The next prime is 40806253. The reversal of 40806224 is 42260804.

40806224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40806193 and 40806202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40806223) 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 7 ways as a sum of consecutive naturals, for example, 81527 + ... + 82025.

It is an arithmetic number, because the mean of its divisors is an integer number (2092500).

Almost surely, 2^40806224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40806224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41850000).

40806224 is an abundant number, since it is smaller than the sum of its proper divisors (42893776).

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

40806224 is a wasteful number, since it uses less digits than its factorization.

40806224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 40806224 is about 6387.9749529878. The cubic root of 40806224 is about 344.2776287700.

The spelling of 40806224 in words is "forty million, eight hundred six thousand, two hundred twenty-four".