830940842 has 8 divisors (see below), whose sum is σ = 1247300100. Its totient is φ = 415174144.

The previous prime is 830940839. The next prime is 830940853. The reversal of 830940842 is 248049038.

It can be written as a sum of positive squares in 2 ways, for example, as 554084521 + 276856321 = 23539^2 + 16639^2 .

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 = 830940796 and 830940805.

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, 144617 + ... + 150252.

Almost surely, 2^830940842 is an apocalyptic number.

830940842 is a deficient number, since it is larger than the sum of its proper divisors (416359258).

830940842 is a wasteful number, since it uses less digits than its factorization.

830940842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296280.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 830940842 is about 28826.0445083955. The cubic root of 830940842 is about 940.1345974457.

The spelling of 830940842 in words is "eight hundred thirty million, nine hundred forty thousand, eight hundred forty-two".