406889636 has 12 divisors (see below), whose sum is σ = 749533680. Its totient is φ = 192737160.

The previous prime is 406889627. The next prime is 406889641. The reversal of 406889636 is 636988604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2676830 + ... + 2676981.

It is an arithmetic number, because the mean of its divisors is an integer number (62461140).

Almost surely, 2^406889636 is an apocalyptic number.

It is an amenable number.

406889636 is a deficient number, since it is larger than the sum of its proper divisors (342644044).

406889636 is a wasteful number, since it uses less digits than its factorization.

406889636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353834 (or 5353832 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The square root of 406889636 is about 20171.5055461906. The cubic root of 406889636 is about 741.0125146392.

The spelling of 406889636 in words is "four hundred six million, eight hundred eighty-nine thousand, six hundred thirty-six".