1908742 has 16 divisors (see below), whose sum is σ = 3184272. Its totient is φ = 850720.

The previous prime is 1908737. The next prime is 1908749. The reversal of 1908742 is 2478091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1908749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 1984.

It is an arithmetic number, because the mean of its divisors is an integer number (199017).

2^1908742 is an apocalyptic number.

1908742 is a deficient number, since it is larger than the sum of its proper divisors (1275530).

1908742 is a wasteful number, since it uses less digits than its factorization.

1908742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1908742 is about 1381.5722927158. The cubic root of 1908742 is about 124.0458987212.

The spelling of 1908742 in words is "one million, nine hundred eight thousand, seven hundred forty-two".