417661406 has 16 divisors (see below), whose sum is σ = 665807040. Its totient is φ = 195816960.

The previous prime is 417661379. The next prime is 417661417. The reversal of 417661406 is 604166714.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13451 + ... + 31878.

It is an arithmetic number, because the mean of its divisors is an integer number (41612940).

Almost surely, 2^417661406 is an apocalyptic number.

417661406 is a deficient number, since it is larger than the sum of its proper divisors (248145634).

417661406 is a wasteful number, since it uses less digits than its factorization.

417661406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45619.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 417661406 is about 20436.7660357504. The cubic root of 417661406 is about 747.4946959948.

The spelling of 417661406 in words is "four hundred seventeen million, six hundred sixty-one thousand, four hundred six".