40240444 has 12 divisors (see below), whose sum is σ = 70492968. Its totient is φ = 20099600.

The previous prime is 40240441. The next prime is 40240451. The reversal of 40240444 is 44404204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240441) 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, 247 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (5874414).

Almost surely, 2^40240444 is an apocalyptic number.

It is an amenable number.

40240444 is a deficient number, since it is larger than the sum of its proper divisors (30252524).

40240444 is a wasteful number, since it uses less digits than its factorization.

40240444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10316 (or 10314 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 40240444 is about 6343.5356072146. The cubic root of 40240444 is about 342.6790766162.

Adding to 40240444 its reverse (44404204), we get a palindrome (84644648).

The spelling of 40240444 in words is "forty million, two hundred forty thousand, four hundred forty-four".