40401478205 has 16 divisors (see below), whose sum is σ = 52939039104. Its totient is φ = 29355209280.

The previous prime is 40401478189. The next prime is 40401478217. The reversal of 40401478205 is 50287410404.

It is not a de Polignac number, because 40401478205 - 2⁴ = 40401478189 is a prime.

It is a super-2 number, since 2×40401478205² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287054 + ... + 403983.

It is an arithmetic number, because the mean of its divisors is an integer number (3308689944).

Almost surely, 2^40401478205 is an apocalyptic number.

It is an amenable number.

40401478205 is a deficient number, since it is larger than the sum of its proper divisors (12537560899).

40401478205 is a wasteful number, since it uses less digits than its factorization.

40401478205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692116.

The product of its (nonzero) digits is 35840, while the sum is 35.

Adding to 40401478205 its reverse (50287410404), we get a palindrome (90688888609).

The spelling of 40401478205 in words is "forty billion, four hundred one million, four hundred seventy-eight thousand, two hundred five".