40505224 has 16 divisors (see below), whose sum is σ = 76219920. Its totient is φ = 20179920.

The previous prime is 40505221. The next prime is 40505233. The reversal of 40505224 is 42250504.

It is a junction number, because it is equal to n+sod(n) for n = 40505195 and 40505204.

It is not an unprimeable number, because it can be changed into a prime (40505221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6682 + ... + 11209.

It is an arithmetic number, because the mean of its divisors is an integer number (4763745).

Almost surely, 2^40505224 is an apocalyptic number.

It is an amenable number.

40505224 is a deficient number, since it is larger than the sum of its proper divisors (35714696).

40505224 is a wasteful number, since it uses less digits than its factorization.

40505224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18180 (or 18176 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 40505224 is about 6364.3714536472. The cubic root of 40505224 is about 343.4290375317.

Adding to 40505224 its reverse (42250504), we get a palindrome (82755728).

The spelling of 40505224 in words is "forty million, five hundred five thousand, two hundred twenty-four".