406431359 has 8 divisors (see below), whose sum is σ = 444221568. Its totient is φ = 370183680.

The previous prime is 406431331. The next prime is 406431391. The reversal of 406431359 is 953134604.

It is a happy number.

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 406431359 - 2¹⁶ = 406365823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406431059) 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, 385082 + ... + 386135.

It is an arithmetic number, because the mean of its divisors is an integer number (55527696).

Almost surely, 2^406431359 is an apocalyptic number.

406431359 is a deficient number, since it is larger than the sum of its proper divisors (37790209).

406431359 is a wasteful number, since it uses less digits than its factorization.

406431359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771265.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 406431359 is about 20160.1428318353. The cubic root of 406431359 is about 740.7342110288.

The spelling of 406431359 in words is "four hundred six million, four hundred thirty-one thousand, three hundred fifty-nine".