814858042 has 12 divisors (see below), whose sum is σ = 1298416590. Its totient is φ = 383462336.

The previous prime is 814858039. The next prime is 814858049. The reversal of 814858042 is 240858418.

It can be written as a sum of positive squares in 3 ways, for example, as 814588681 + 269361 = 28541^2 + 519^2 .

It is a super-3 number, since 3×814858042³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 814857986 and 814858004.

It is not an unprimeable number, because it can be changed into a prime (814858049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 704317 + ... + 705472.

Almost surely, 2^814858042 is an apocalyptic number.

814858042 is a deficient number, since it is larger than the sum of its proper divisors (483558548).

814858042 is a wasteful number, since it uses less digits than its factorization.

814858042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409825 (or 1409808 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The square root of 814858042 is about 28545.7184530360. The cubic root of 814858042 is about 934.0296268727.

The spelling of 814858042 in words is "eight hundred fourteen million, eight hundred fifty-eight thousand, forty-two".