1942005 has 32 divisors (see below), whose sum is σ = 3499776. Its totient is φ = 912384.

The previous prime is 1942001. The next prime is 1942007. The reversal of 1942005 is 5002491.

It is not a de Polignac number, because 1942005 - 2² = 1942001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942001) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4269 + ... + 4701.

It is an arithmetic number, because the mean of its divisors is an integer number (109368).

2^1942005 is an apocalyptic number.

1942005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1942005 is a deficient number, since it is larger than the sum of its proper divisors (1557771).

1942005 is a wasteful number, since it uses less digits than its factorization.

1942005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1942005 is about 1393.5583949013. The cubic root of 1942005 is about 124.7623216919.

Adding to 1942005 its reverse (5002491), we get a palindrome (6944496).

It can be divided in two parts, 19 and 42005, that added together give a palindrome (42024).

The spelling of 1942005 in words is "one million, nine hundred forty-two thousand, five".