811835242 has 8 divisors (see below), whose sum is σ = 1222247232. Its totient is φ = 404419500.

The previous prime is 811835239. The next prime is 811835257. The reversal of 811835242 is 242538118.

It is a happy number.

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 = 811835198 and 811835207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748384 + ... + 749467.

It is an arithmetic number, because the mean of its divisors is an integer number (152780904).

Almost surely, 2^811835242 is an apocalyptic number.

811835242 is a deficient number, since it is larger than the sum of its proper divisors (410411990).

811835242 is a wasteful number, since it uses less digits than its factorization.

811835242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498124.

The product of its digits is 15360, while the sum is 34.

The square root of 811835242 is about 28492.7226147309. The cubic root of 811835242 is about 932.8732360105.

The spelling of 811835242 in words is "eight hundred eleven million, eight hundred thirty-five thousand, two hundred forty-two".