805593642 has 16 divisors (see below), whose sum is σ = 1841356992. Its totient is φ = 230169600.

The previous prime is 805593641. The next prime is 805593643. The reversal of 805593642 is 246395508.

It is an interprime number because it is at equal distance from previous prime (805593641) and next prime (805593643).

It is a super-2 number, since 2×805593642² = 1297962232061648328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 19180801 = 805593642 / (8 + 0 + 5 + 5 + 9 + 3 + 6 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 805593594 and 805593603.

It is not an unprimeable number, because it can be changed into a prime (805593641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9590359 + ... + 9590442.

It is an arithmetic number, because the mean of its divisors is an integer number (115084812).

Almost surely, 2^805593642 is an apocalyptic number.

805593642 is an abundant number, since it is smaller than the sum of its proper divisors (1035763350).

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

805593642 is a wasteful number, since it uses less digits than its factorization.

805593642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19180813.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 805593642 is about 28382.9815558549. The cubic root of 805593642 is about 930.4763590361.

The spelling of 805593642 in words is "eight hundred five million, five hundred ninety-three thousand, six hundred forty-two".