406168249346 has 12 divisors (see below), whose sum is σ = 636893315142. Its totient is φ = 194254379616.

The previous prime is 406168249343. The next prime is 406168249373. The reversal of 406168249346 is 643942861604.

It can be written as a sum of positive squares in only one way, i.e., 406101582121 + 66667225 = 637261^2 + 8165^2 .

It is not an unprimeable number, because it can be changed into a prime (406168249343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191949911 + ... + 191952026.

Almost surely, 2^406168249346 is an apocalyptic number.

406168249346 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

406168249346 is a deficient number, since it is larger than the sum of its proper divisors (230725065796).

406168249346 is a wasteful number, since it uses less digits than its factorization.

406168249346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383901985 (or 383901962 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 53.

The spelling of 406168249346 in words is "four hundred six billion, one hundred sixty-eight million, two hundred forty-nine thousand, three hundred forty-six".