805332890 has 16 divisors (see below), whose sum is σ = 1474169760. Its totient is φ = 316673040.

The previous prime is 805332877. The next prime is 805332953. The reversal of 805332890 is 98233508.

It is a super-2 number, since 2×805332890² = 1297122127431504200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 681896 + ... + 683075.

It is an arithmetic number, because the mean of its divisors is an integer number (92135610).

Almost surely, 2^805332890 is an apocalyptic number.

805332890 is a deficient number, since it is larger than the sum of its proper divisors (668836870).

805332890 is a wasteful number, since it uses less digits than its factorization.

805332890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365037.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 805332890 is about 28378.3877272829. The cubic root of 805332890 is about 930.3759569885.

The spelling of 805332890 in words is "eight hundred five million, three hundred thirty-two thousand, eight hundred ninety".