1845004 has 24 divisors (see below), whose sum is σ = 3725568. Its totient is φ = 783120.

The previous prime is 1844987. The next prime is 1845017. The reversal of 1845004 is 4005481.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

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, 3417 + ... + 3919.

It is an arithmetic number, because the mean of its divisors is an integer number (155232).

2^1845004 is an apocalyptic number.

1845004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1845004 is an abundant number, since it is smaller than the sum of its proper divisors (1880564).

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

1845004 is a wasteful number, since it uses less digits than its factorization.

1845004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1845004 is about 1358.3092431402. The cubic root of 1845004 is about 122.6494967829.

The spelling of 1845004 in words is "one million, eight hundred forty-five thousand, four".