40311445 has 8 divisors (see below), whose sum is σ = 50919840. Its totient is φ = 30551760.

The previous prime is 40311443. The next prime is 40311461. The reversal of 40311445 is 54411304.

40311445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40311445 - 2¹ = 40311443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40311443) by changing a digit.

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, 212071 + ... + 212260.

It is an arithmetic number, because the mean of its divisors is an integer number (6364980).

Almost surely, 2^40311445 is an apocalyptic number.

It is an amenable number.

40311445 is a deficient number, since it is larger than the sum of its proper divisors (10608395).

40311445 is a wasteful number, since it uses less digits than its factorization.

40311445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424355.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40311445 is about 6349.1294678877. The cubic root of 40311445 is about 342.8805013434.

Adding to 40311445 its reverse (54411304), we get a palindrome (94722749).

It can be divided in two parts, 4031 and 1445, that added together give a square (5476 = 74²).

The spelling of 40311445 in words is "forty million, three hundred eleven thousand, four hundred forty-five".