806405158 has 32 divisors (see below), whose sum is σ = 1356306336. Its totient is φ = 357136128.

The previous prime is 806405141. The next prime is 806405161. The reversal of 806405158 is 851504608.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64485 + ... + 75967.

It is an arithmetic number, because the mean of its divisors is an integer number (42384573).

Almost surely, 2^806405158 is an apocalyptic number.

806405158 is a deficient number, since it is larger than the sum of its proper divisors (549901178).

806405158 is a wasteful number, since it uses less digits than its factorization.

806405158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11608.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 806405158 is about 28397.2737776006. The cubic root of 806405158 is about 930.7886931154.

The spelling of 806405158 in words is "eight hundred six million, four hundred five thousand, one hundred fifty-eight".