40424444 has 6 divisors (see below), whose sum is σ = 70742784. Its totient is φ = 20212220.

The previous prime is 40424441. The next prime is 40424467. The reversal of 40424444 is 44442404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053052 + ... + 5053059.

It is an arithmetic number, because the mean of its divisors is an integer number (11790464).

Almost surely, 2^40424444 is an apocalyptic number.

It is an amenable number.

40424444 is a deficient number, since it is larger than the sum of its proper divisors (30318340).

40424444 is a wasteful number, since it uses less digits than its factorization.

40424444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106115 (or 10106113 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 40424444 is about 6358.0220194649. The cubic root of 40424444 is about 343.2005841985.

Adding to 40424444 its reverse (44442404), we get a palindrome (84866848).

The spelling of 40424444 in words is "forty million, four hundred twenty-four thousand, four hundred forty-four".