406536804 has 36 divisors (see below), whose sum is σ = 1028911884. Its totient is φ = 135343872.

The previous prime is 406536751. The next prime is 406536839. The reversal of 406536804 is 408635604.

406536804 is a `hidden beast` number, since 40 + 6 + 536 + 80 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 327682404 + 78854400 = 18102^2 + 8880^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24264 + ... + 37440.

Almost surely, 2^406536804 is an apocalyptic number.

It is an amenable number.

406536804 is an abundant number, since it is smaller than the sum of its proper divisors (622375080).

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

406536804 is a wasteful number, since it uses less digits than its factorization.

406536804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14044 (or 14039 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 406536804 is about 20162.7578470803. The cubic root of 406536804 is about 740.7982644566.

The spelling of 406536804 in words is "four hundred six million, five hundred thirty-six thousand, eight hundred four".