2045804 has 24 divisors (see below), whose sum is σ = 3843168. Its totient is φ = 950400.

The previous prime is 2045789. The next prime is 2045819. The reversal of 2045804 is 4085402.

It is an interprime number because it is at equal distance from previous prime (2045789) and next prime (2045819).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 2045804.

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, 3104 + ... + 3704.

It is an arithmetic number, because the mean of its divisors is an integer number (160132).

2^2045804 is an apocalyptic number.

It is an amenable number.

2045804 is a deficient number, since it is larger than the sum of its proper divisors (1797364).

2045804 is a wasteful number, since it uses less digits than its factorization.

2045804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2045804 is about 1430.3160489906. The cubic root of 2045804 is about 126.9466781757.

The spelling of 2045804 in words is "two million, forty-five thousand, eight hundred four".