40445413 has 8 divisors (see below), whose sum is σ = 42169248. Its totient is φ = 38757264.

The previous prime is 40445399. The next prime is 40445417. The reversal of 40445413 is 31454404.

40445413 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 a cyclic number.

It is not a de Polignac number, because 40445413 - 2¹⁷ = 40314341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445417) 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, 6595 + ... + 11152.

It is an arithmetic number, because the mean of its divisors is an integer number (5271156).

Almost surely, 2^40445413 is an apocalyptic number.

40445413 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

40445413 is a deficient number, since it is larger than the sum of its proper divisors (1723835).

40445413 is a wasteful number, since it uses less digits than its factorization.

40445413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17843.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 40445413 is about 6359.6708248148. The cubic root of 40445413 is about 343.2599157016.

Adding to 40445413 its reverse (31454404), we get a palindrome (71899817).

The spelling of 40445413 in words is "forty million, four hundred forty-five thousand, four hundred thirteen".