40444605 has 12 divisors (see below), whose sum is σ = 70104060. Its totient is φ = 21570432.

The previous prime is 40444583. The next prime is 40444627. The reversal of 40444605 is 50644404.

40444605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40444583) and next prime (40444627).

It can be written as a sum of positive squares in 2 ways, for example, as 16208676 + 24235929 = 4026^2 + 4923^2 .

It is not a de Polignac number, because 40444605 - 2¹⁹ = 39920317 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 449340 + ... + 449429.

It is an arithmetic number, because the mean of its divisors is an integer number (5842005).

Almost surely, 2^40444605 is an apocalyptic number.

40444605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40444605 is a deficient number, since it is larger than the sum of its proper divisors (29659455).

40444605 is a wasteful number, since it uses less digits than its factorization.

40444605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898780 (or 898777 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 40444605 is about 6359.6072991970. The cubic root of 40444605 is about 343.2576298564.

It can be divided in two parts, 4044 and 4605, that added together give a square (8649 = 93²).

The spelling of 40444605 in words is "forty million, four hundred forty-four thousand, six hundred five".