805113842 has 8 divisors (see below), whose sum is σ = 1300568556. Its totient is φ = 371590992.

The previous prime is 805113797. The next prime is 805113851. The reversal of 805113842 is 248311508.

It can be written as a sum of positive squares in 2 ways, for example, as 793492561 + 11621281 = 28169^2 + 3409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 805113799 and 805113808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15482933 + ... + 15482984.

Almost surely, 2^805113842 is an apocalyptic number.

805113842 is a deficient number, since it is larger than the sum of its proper divisors (495454714).

805113842 is a wasteful number, since it uses less digits than its factorization.

805113842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30965932.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 805113842 is about 28374.5280489385. The cubic root of 805113842 is about 930.2915962331.

The spelling of 805113842 in words is "eight hundred five million, one hundred thirteen thousand, eight hundred forty-two".