40444313 has 8 divisors (see below), whose sum is σ = 49777728. Its totient is φ = 31999824.

The previous prime is 40444307. The next prime is 40444319. The reversal of 40444313 is 31344404.

It is an interprime number because it is at equal distance from previous prime (40444307) and next prime (40444319).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40444313 - 2²² = 36250009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40444319) 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 7 ways as a sum of consecutive naturals, for example, 222131 + ... + 222312.

It is an arithmetic number, because the mean of its divisors is an integer number (6222216).

Almost surely, 2^40444313 is an apocalyptic number.

It is an amenable number.

40444313 is a deficient number, since it is larger than the sum of its proper divisors (9333415).

40444313 is a wasteful number, since it uses less digits than its factorization.

40444313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444463.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40444313 is about 6359.5843417632. The cubic root of 40444313 is about 343.2568037762.

Adding to 40444313 its reverse (31344404), we get a palindrome (71788717).

Subtracting from 40444313 its reverse (31344404), we obtain a palindrome (9099909).

The spelling of 40444313 in words is "forty million, four hundred forty-four thousand, three hundred thirteen".