40448444 has 24 divisors (see below), whose sum is σ = 74417280. Its totient is φ = 19199664.

The previous prime is 40448431. The next prime is 40448501. The reversal of 40448444 is 44484404.

40448444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40448444² = 3272153244042272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40448444.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11207 + ... + 14369.

It is an arithmetic number, because the mean of its divisors is an integer number (3100720).

Almost surely, 2^40448444 is an apocalyptic number.

It is an amenable number.

40448444 is a deficient number, since it is larger than the sum of its proper divisors (33968836).

40448444 is a wasteful number, since it uses less digits than its factorization.

40448444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

The square root of 40448444 is about 6359.9091188475. The cubic root of 40448444 is about 343.2684901788.

The spelling of 40448444 in words is "forty million, four hundred forty-eight thousand, four hundred forty-four".