806428044 has 36 divisors (see below), whose sum is σ = 2039617216. Its totient is φ = 268658208.

The previous prime is 806428037. The next prime is 806428067. The reversal of 806428044 is 440824608.

806428044 is a `hidden beast` number, since 8 + 0 + 642 + 8 + 0 + 4 + 4 = 666.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71922 + ... + 82374.

Almost surely, 2^806428044 is an apocalyptic number.

It is an amenable number.

806428044 is an abundant number, since it is smaller than the sum of its proper divisors (1233189172).

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

806428044 is a wasteful number, since it uses less digits than its factorization.

806428044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12606 (or 12601 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 806428044 is about 28397.6767359585. The cubic root of 806428044 is about 930.7974983785.

The spelling of 806428044 in words is "eight hundred six million, four hundred twenty-eight thousand, forty-four".