1816875242 has 16 divisors (see below), whose sum is σ = 3354231552. Its totient is φ = 718763760.

The previous prime is 1816875191. The next prime is 1816875257. The reversal of 1816875242 is 2425786181.

It is a junction number, because it is equal to n+sod(n) for n = 1816875193 and 1816875202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4991234 + ... + 4991597.

It is an arithmetic number, because the mean of its divisors is an integer number (209639472).

Almost surely, 2^1816875242 is an apocalyptic number.

1816875242 is a deficient number, since it is larger than the sum of its proper divisors (1537356310).

1816875242 is a wasteful number, since it uses less digits than its factorization.

1816875242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9982853.

The product of its digits is 215040, while the sum is 44.

The square root of 1816875242 is about 42624.8195538703. The cubic root of 1816875242 is about 1220.2300117249.

The spelling of 1816875242 in words is "one billion, eight hundred sixteen million, eight hundred seventy-five thousand, two hundred forty-two".