405980159 has 8 divisors (see below), whose sum is σ = 445459392. Its totient is φ = 367679520.

The previous prime is 405980143. The next prime is 405980167. The reversal of 405980159 is 951089504.

It is a happy number.

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

It is not a de Polignac number, because 405980159 - 2⁴ = 405980143 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 (405980119) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 293927 + ... + 295304.

It is an arithmetic number, because the mean of its divisors is an integer number (55682424).

Almost surely, 2^405980159 is an apocalyptic number.

405980159 is a deficient number, since it is larger than the sum of its proper divisors (39479233).

405980159 is a wasteful number, since it uses less digits than its factorization.

405980159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589297.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 405980159 is about 20148.9493274463. The cubic root of 405980159 is about 740.4600006996.

The spelling of 405980159 in words is "four hundred five million, nine hundred eighty thousand, one hundred fifty-nine".