1845946 has 4 divisors (see below), whose sum is σ = 2768922. Its totient is φ = 922972.

The previous prime is 1845941. The next prime is 1845959. The reversal of 1845946 is 6495481.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 168921 = 1295^2 + 411^2 .

It is not an unprimeable number, because it can be changed into a prime (1845941) by changing a digit.

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 as a sum of consecutive naturals, namely, 461485 + ... + 461488.

2^1845946 is an apocalyptic number.

1845946 is a deficient number, since it is larger than the sum of its proper divisors (922976).

1845946 is an equidigital number, since it uses as much as digits as its factorization.

1845946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922975.

The product of its digits is 34560, while the sum is 37.

The square root of 1845946 is about 1358.6559535070. The cubic root of 1845946 is about 122.6703668675.

The spelling of 1845946 in words is "one million, eight hundred forty-five thousand, nine hundred forty-six".