1995730 has 16 divisors (see below), whose sum is σ = 3919104. Its totient is φ = 725680.

The previous prime is 1995727. The next prime is 1995769. The reversal of 1995730 is 375991.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8962 + ... + 9181.

It is an arithmetic number, because the mean of its divisors is an integer number (244944).

2^1995730 is an apocalyptic number.

1995730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1995730 is a deficient number, since it is larger than the sum of its proper divisors (1923374).

1995730 is a wasteful number, since it uses less digits than its factorization.

1995730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18161.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 1995730 is about 1412.7030827460. The cubic root of 1995730 is about 125.9023767212.

It can be divided in two parts, 199 and 5730, that added together give a square (5929 = 77²).

The spelling of 1995730 in words is "one million, nine hundred ninety-five thousand, seven hundred thirty".