817468042 has 8 divisors (see below), whose sum is σ = 1226439396. Its totient is φ = 408654912.

The previous prime is 817468033. The next prime is 817468051. The reversal of 817468042 is 240864718.

It is an interprime number because it is at equal distance from previous prime (817468033) and next prime (817468051).

It can be written as a sum of positive squares in 2 ways, for example, as 771783961 + 45684081 = 27781^2 + 6759^2 .

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 = 817467986 and 817468004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25663 + ... + 47890.

Almost surely, 2^817468042 is an apocalyptic number.

817468042 is a deficient number, since it is larger than the sum of its proper divisors (408971354).

817468042 is a wasteful number, since it uses less digits than its factorization.

817468042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79112.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 817468042 is about 28591.3980420685. The cubic root of 817468042 is about 935.0258000449.

The spelling of 817468042 in words is "eight hundred seventeen million, four hundred sixty-eight thousand, forty-two".