805216368 has 40 divisors (see below), whose sum is σ = 2269247616. Its totient is φ = 244004800.

The previous prime is 805216337. The next prime is 805216381. The reversal of 805216368 is 863612508.

It is a happy number.

It is a super-2 number, since 2×805216368² = 1296746798590222848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761988 + ... + 763043.

Almost surely, 2^805216368 is an apocalyptic number.

805216368 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

805216368 is an abundant number, since it is smaller than the sum of its proper divisors (1464031248).

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

805216368 is a wasteful number, since it uses less digits than its factorization.

805216368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525053 (or 1525047 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 805216368 is about 28376.3346470259. The cubic root of 805216368 is about 930.3310834140.

The spelling of 805216368 in words is "eight hundred five million, two hundred sixteen thousand, three hundred sixty-eight".