805403242 has 16 divisors (see below), whose sum is σ = 1382052672. Its totient is φ = 344832480.

The previous prime is 805403239. The next prime is 805403243. The reversal of 805403242 is 242304508.

It is a super-3 number, since 3×805403242³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 805403242.

It is not an unprimeable number, because it can be changed into a prime (805403243) 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, 13384 + ... + 42307.

It is an arithmetic number, because the mean of its divisors is an integer number (86378292).

Almost surely, 2^805403242 is an apocalyptic number.

805403242 is a deficient number, since it is larger than the sum of its proper divisors (576649430).

805403242 is a wasteful number, since it uses less digits than its factorization.

805403242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56733.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 805403242 is about 28379.6272350431. The cubic root of 805403242 is about 930.4030480231.

The spelling of 805403242 in words is "eight hundred five million, four hundred three thousand, two hundred forty-two".