40805224 has 8 divisors (see below), whose sum is σ = 76509810. Its totient is φ = 20402608.

The previous prime is 40805221. The next prime is 40805249. The reversal of 40805224 is 42250804.

It is a happy number.

40805224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31696900 + 9108324 = 5630^2 + 3018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40805221) 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 as a sum of consecutive naturals, namely, 2550319 + ... + 2550334.

Almost surely, 2^40805224 is an apocalyptic number.

It is an amenable number.

40805224 is a deficient number, since it is larger than the sum of its proper divisors (35704586).

40805224 is a wasteful number, since it uses less digits than its factorization.

40805224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100659 (or 5100655 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 40805224 is about 6387.8966804418. The cubic root of 40805224 is about 344.2748164503.

The spelling of 40805224 in words is "forty million, eight hundred five thousand, two hundred twenty-four".