406878682 has 8 divisors (see below), whose sum is σ = 697506336. Its totient is φ = 174376572.

The previous prime is 406878653. The next prime is 406878683. The reversal of 406878682 is 286878604.

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

It is not an unprimeable number, because it can be changed into a prime (406878683) 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 3 ways as a sum of consecutive naturals, for example, 14531368 + ... + 14531395.

It is an arithmetic number, because the mean of its divisors is an integer number (87188292).

Almost surely, 2^406878682 is an apocalyptic number.

406878682 is a deficient number, since it is larger than the sum of its proper divisors (290627654).

406878682 is a wasteful number, since it uses less digits than its factorization.

406878682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29062772.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 406878682 is about 20171.2340227364. The cubic root of 406878682 is about 741.0058649049.

The spelling of 406878682 in words is "four hundred six million, eight hundred seventy-eight thousand, six hundred eighty-two".