1840040122 has 8 divisors (see below), whose sum is σ = 2766101076. Its totient is φ = 918006432.

The previous prime is 1840040099. The next prime is 1840040141. The reversal of 1840040122 is 2210400481.

It can be written as a sum of positive squares in 2 ways, for example, as 1834323241 + 5716881 = 42829^2 + 2391^2 .

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 = 1840040093 and 1840040102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005673 + ... + 1007500.

Almost surely, 2^1840040122 is an apocalyptic number.

1840040122 is a deficient number, since it is larger than the sum of its proper divisors (926060954).

1840040122 is a wasteful number, since it uses less digits than its factorization.

1840040122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013632.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1840040122 is about 42895.6888509790. The cubic root of 1840040122 is about 1225.3940416662.

The spelling of 1840040122 in words is "one billion, eight hundred forty million, forty thousand, one hundred twenty-two".