40005224 has 32 divisors (see below), whose sum is σ = 85942080. Its totient is φ = 17101824.

The previous prime is 40005197. The next prime is 40005227. The reversal of 40005224 is 42250004.

It is not an unprimeable number, because it can be changed into a prime (40005227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32264 + ... + 33480.

It is an arithmetic number, because the mean of its divisors is an integer number (2685690).

Almost surely, 2^40005224 is an apocalyptic number.

It is an amenable number.

40005224 is an abundant number, since it is smaller than the sum of its proper divisors (45936856).

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

40005224 is a wasteful number, since it uses less digits than its factorization.

40005224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 40005224 is about 6324.9683003158. The cubic root of 40005224 is about 342.0100768778.

Adding to 40005224 its reverse (42250004), we get a palindrome (82255228).

The spelling of 40005224 in words is "forty million, five thousand, two hundred twenty-four".