406989804 has 96 divisors (see below), whose sum is σ = 1094652160. Its totient is φ = 116640000.

The previous prime is 406989773. The next prime is 406989811. The reversal of 406989804 is 408989604.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 179679 + ... + 181929.

Almost surely, 2^406989804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406989804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547326080).

406989804 is an abundant number, since it is smaller than the sum of its proper divisors (687662356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406989804 is a wasteful number, since it uses less digits than its factorization.

406989804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 406989804 is about 20173.9883017712. The cubic root of 406989804 is about 741.0733170820.

The spelling of 406989804 in words is "four hundred six million, nine hundred eighty-nine thousand, eight hundred four".