1906930 has 16 divisors (see below), whose sum is σ = 3582144. Its totient is φ = 729520.

The previous prime is 1906909. The next prime is 1906963. The reversal of 1906930 is 396091.

1906930 = 96² + 97² + ... + 187².

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3916 + ... + 4375.

It is an arithmetic number, because the mean of its divisors is an integer number (223884).

2^1906930 is an apocalyptic number.

1906930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1906930 is a deficient number, since it is larger than the sum of its proper divisors (1675214).

1906930 is a wasteful number, since it uses less digits than its factorization.

1906930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8321.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1906930 is about 1380.9163624203. The cubic root of 1906930 is about 124.0066333600.

The spelling of 1906930 in words is "one million, nine hundred six thousand, nine hundred thirty".