2051906 has 8 divisors (see below), whose sum is σ = 3087120. Its totient is φ = 1022868.

The previous prime is 2051893. The next prime is 2051923. The reversal of 2051906 is 6091502.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 2111.

It is an arithmetic number, because the mean of its divisors is an integer number (385890).

2^2051906 is an apocalyptic number.

2051906 is a deficient number, since it is larger than the sum of its proper divisors (1035214).

2051906 is a wasteful number, since it uses less digits than its factorization.

2051906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 2051906 is about 1432.4475557590. The cubic root of 2051906 is about 127.0727671110.

The spelling of 2051906 in words is "two million, fifty-one thousand, nine hundred six".