1995906 has 16 divisors (see below), whose sum is σ = 4354848. Its totient is φ = 604800.

The previous prime is 1995883. The next prime is 1995913. The reversal of 1995906 is 6095991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15055 + ... + 15186.

It is an arithmetic number, because the mean of its divisors is an integer number (272178).

2^1995906 is an apocalyptic number.

1995906 is an abundant number, since it is smaller than the sum of its proper divisors (2358942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1995906 is a wasteful number, since it uses less digits than its factorization.

1995906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30257.

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 1995906 is about 1412.7653733016. The cubic root of 1995906 is about 125.9060776505.

It can be divided in two parts, 199 and 5906, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 1995906 in words is "one million, nine hundred ninety-five thousand, nine hundred six".