416661406 has 12 divisors (see below), whose sum is σ = 727031808. Its totient is φ = 178569132.

The previous prime is 416661379. The next prime is 416661407. The reversal of 416661406 is 604166614.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416661407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2125726 + ... + 2125921.

It is an arithmetic number, because the mean of its divisors is an integer number (60585984).

Almost surely, 2^416661406 is an apocalyptic number.

416661406 is a deficient number, since it is larger than the sum of its proper divisors (310370402).

416661406 is a wasteful number, since it uses less digits than its factorization.

416661406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251663 (or 4251656 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 416661406 is about 20412.2856632960. The cubic root of 416661406 is about 746.8976477228.

The spelling of 416661406 in words is "four hundred sixteen million, six hundred sixty-one thousand, four hundred six".