1906738 has 8 divisors (see below), whose sum is σ = 2907180. Its totient is φ = 937680.

The previous prime is 1906733. The next prime is 1906739. The reversal of 1906738 is 8376091.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 10609 = 1377^2 + 103^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1906733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7693 + ... + 7936.

2^1906738 is an apocalyptic number.

1906738 is a deficient number, since it is larger than the sum of its proper divisors (1000442).

1906738 is a wasteful number, since it uses less digits than its factorization.

1906738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15692.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1906738 is about 1380.8468416157. The cubic root of 1906738 is about 124.0024713347.

The spelling of 1906738 in words is "one million, nine hundred six thousand, seven hundred thirty-eight".