855530842 has 8 divisors (see below), whose sum is σ = 1283421600. Its totient is φ = 427723644.

The previous prime is 855530807. The next prime is 855530849. The reversal of 855530842 is 248035558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×855530842² = 1463866043226457928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 855530795 and 855530804.

It is not an unprimeable number, because it can be changed into a prime (855530849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24009 + ... + 47827.

It is an arithmetic number, because the mean of its divisors is an integer number (160427700).

Almost surely, 2^855530842 is an apocalyptic number.

855530842 is a deficient number, since it is larger than the sum of its proper divisors (427890758).

855530842 is a wasteful number, since it uses less digits than its factorization.

855530842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41780.

The product of its (nonzero) digits is 192000, while the sum is 40.

The square root of 855530842 is about 29249.4588326006. The cubic root of 855530842 is about 949.3183816053.

The spelling of 855530842 in words is "eight hundred fifty-five million, five hundred thirty thousand, eight hundred forty-two".