1904122 has 16 divisors (see below), whose sum is σ = 3193344. Its totient is φ = 844000.

The previous prime is 1904117. The next prime is 1904129. The reversal of 1904122 is 2214091.

It is a self number, because there is not a number n which added to its sum of digits gives 1904122.

It is not an unprimeable number, because it can be changed into a prime (1904129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154 + ... + 1957.

It is an arithmetic number, because the mean of its divisors is an integer number (199584).

2^1904122 is an apocalyptic number.

1904122 is a deficient number, since it is larger than the sum of its proper divisors (1289222).

1904122 is a wasteful number, since it uses less digits than its factorization.

1904122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1904122 is about 1379.8992716862. The cubic root of 1904122 is about 123.9457358821.

The spelling of 1904122 in words is "one million, nine hundred four thousand, one hundred twenty-two".