406708385 has 8 divisors (see below), whose sum is σ = 488920320. Its totient is φ = 324786544.

The previous prime is 406708369. The next prime is 406708387. The reversal of 406708385 is 583807604.

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 406708385 - 2⁴ = 406708369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406708387) 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, 69425 + ... + 75054.

It is an arithmetic number, because the mean of its divisors is an integer number (61115040).

Almost surely, 2^406708385 is an apocalyptic number.

It is an amenable number.

406708385 is a deficient number, since it is larger than the sum of its proper divisors (82211935).

406708385 is a wasteful number, since it uses less digits than its factorization.

406708385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145047.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 406708385 is about 20167.0122973137. The cubic root of 406708385 is about 740.9024690681.

The spelling of 406708385 in words is "four hundred six million, seven hundred eight thousand, three hundred eighty-five".